Excellent stuff:  I would swap out Hart for Dunn in a moment.  
Over the winter I thought Stubbs would be a great addition because he has 3-positional OF leather and beats up lefties.  Didn't know he hit the ball so hard, though.  Grichuk/Suza/Lake are all Stubbs or better, I think.
In golf, Smash Factor is the multiple of swing speed that the ball leaves the club face.  If a guy swings at 100 MPH and the ball leaves at 120, you have a smash factor of 1.2.  Swing at 110MPH and have the  ball leave at 143 your SF is 1.3.  
It measures efficiency.
Your data is very cool.  Who hits the ball especially hard?  In Safeco, that's a big deal.  The Miller #'s are really neat. He has the 2nd hardest hit homer for the M's this year.  Hold onto that guy.
 
 

As you point this out, Mojo, it strikes me that you could fairly easily "project" a distance based on (1) MPH and (2) launch angle.  
Then you could create a "carry index" for every park and of course Safeco -- at least in April and May, at least in certain directions -- would be among the worst HR parks in the league.
Bet you dollars to donuts that ML teams have this info.
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"Crushed HR" stats do not factor in --- > how many times a sloppy curve ball was hung to Marlon Byrd, for example.  But, as you know, no stat is perfect.
What is interesting, is the guys who have LOW crushed HR numbers, such as Kyle Seager.  He's a smaller guy who, as we opined early on, has a special talent for pulling the ball in the air.  It isn't strength with him; it's the ability to get horsepower to the back wheels.
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This stat is worthy of a personal patent -- I hope you'll revisit.
Has me re-thinking Josh Willingham, who I've never been particularly warm towards.  Big Donkey, I have been.  :- )   Wonder where the M's are, w/r/t Adam Dunn.

And check out this scatterchart for his 15 homers this season :- )

We need no stats to recognize his awesome power, that's fo' sho' ...
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Problemo is, the last four (4) years he's fallen off the table ... Shandler says "don't be fooled by 3 shocking months of production in 2013" as he should have retired long ago and "now teams may force his hand" and tear the jersey off his back...
True 'nuff, his OPS+ is 122 at the moment, but his SLG is only .437 and it's not clear to me what he's got left in the tank ... one thing is for sure, the National League Adam Dunn (2004-10) is long gone...
Good stuff Counsela' :- )

Guy has a lot of "Crushed HR's".  A piece of evidence that goes against my eye that he has "garden-variety corner OF" throughspeed, probably.
The M's continue to be rumored as seeing Byrd as their solution.  No doubt their internal "speed off bat" data is part of that.  Time for a level 201 scan?

He's now only the Fairly Large Donkey.
But his OBP of .360+ and his Slg% of .437 sure kick the snot out of the .289 and .339 that Corey Hart puts up.
 

You got me there.  I'm picking up my ball.  What's the max?  8?

Will mark it down as an 8.
 
Winning that hole means I'm only 5 down with 6 to go!  :)

Really cool Moj.  James Bond or Steve McQueen cool.
This is the kind of stuff I thought must exist out there because it surely does for golf.
Spin rate has a huge impact in golf, too.  a 150 MPH golf ball, launched at 14 degrees will carry 241 yards if it is spinning at 1500 RPM (t slow) and 240 yards if it is spinning at 4000 RMP (too fast) but will carry 251 yards at 2900 RPM's.
That's about a 4% difference if you optimize spin rates, too.  4% of a 380 ft fly ball is 15 ft.  I've wondered aloud if spin dooms Justin Smoak. 
I actually found a study done by the University of Illinois that looks at this subject; Baseball spinrate, launch angle and total carry.  http://baseball.physics.illinois.edu/AJPFFeb08.pdf
fig. 8 shows the total carry distance for 3 different spin rates at different launch angles. As best as I can tell, a ball launched at a 30 degree angle with 1000 RPM travels 10-12 ft farther than one with 2000 RPM and about 40 ft further than one with no spin.  Spin rates off the bat were not found to be highly dependent on pitched ball spin rates, btw. For baseball's useage, what needs to be determined is the effect of bat weight (or swing speed) on spin rate. 
But back to Seager.  He is exactly what Bill James was writing long ago about: A fly ball hitter who pulls it a bunch. Let's keep him. 

See yer next year.  Maybe.
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In the meantime, you and Moe might wish to put up articles that --- > apply this to this-or-that Mariner player, at least w/r/t HR tracker.
:: golfclap ::
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PS you like 30 degrees more than 35?  That extra distance is the warning track...  vs 10% more hang time ... hmmm...  
Point stands w/r/t Seager's line-shot homers, though.  That's what they said about Joe DiMaggio.
 

Super high speed cameras measure spin rate at launch.  Of course, it slows down during the flight.  
There was lots in that site that was way beyond my pay grade.  I cherry picked the stuff I could understand pretty readily.
Does a lighter bat with more swing speed impart more or less spin to a ball?  I have no idea.  Maybe it has no impact.  But if it does then there is some ability to "tweak" a bat just as golfers tweak a driver.  
Seager's tater with the lowest launch angle was 24.9.  His "moon shot" was about 36.  I would bet that almost all homers fall into those parameters.  80%-90% would be a decent guess.
Guys like Seager, when they hit it in the air to the pull field they have nutted it.  But something goes amiss with a guy like Smoak.  Clearly he has the strength to whack 'em out but he either doesn't square the ball (losing ball speed....this is what Smash Facton in golf measures) or he doesn't swing the bat as fast or he's got some spin issues.
Is there a site that measures swing speed.  You would really need to look at maximum swing speed where you guess fastball and turn it loose on a fastball AND average swing speed, which may impacted on pitch recognition.  If you are way ahead of a curve ball you are decelerating (or trying to ) to get bat on ball.
 
 

If a guy has:
a high grounder rate, yet
a good HR rate, along with
a tennis-racket style overbite on his followthrough (all three of which Ibanez had)....
you're pretty likely to be watching his liners "inexplicably" drop in front of OF's from Dr. D's perch in the third deck :- )
The two guys with the M's, right now, who are closest to Ibanez this way are Cano and LoMo ... another good reason to spend $240M and/or powerflush the Smoakamotive...
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As Blowers has aptly put it, Logan Morrison has a big three weeks coming, and he thinks they're coming soon.  LoMo has not been rewarded for his very fine work in the batter's box.

Very interesting to me that Smoak shows up in your chart only once, but at 110 which is faster than any of Cano's, Seager's, Saunders' and even Zunino's.
It seems like Smoak the hitter is like Maurer the starter.  The elements are there, but something is keeping them from being converted into success.  Maurer goes to the pen and -- poof! -- what wasn't working is suddenly working.  
Maybe something with the weight of his bat, as one of you has suggested.
Jose Bautista was a decent hitter until age 29 when he made a mechanical change and became an MVP.  Using your tool, I can see that he went from an average of 103 to 106 that year, and he's held the extra oomph.  Smoak has been stuck around 103 his whole career.
Wonder what it would take to get Smoak to 106?
 

Just doing some quick work on Byrd.
It looks like his speed off the bat has not gone up during his power surge.  It's been 103-104 average, about as it had been before.  And it was 106 in 2009 when he was a more "complete" hitter.
But the launch angle seems to be key, as I think it was Jeff Sullivan's article pointing out.  
In 2009 he had only two HR with angle over 30 degrees (of 20).  In 2013 it was 10 of 24.  So far this year, 7 of 18.
Fascinating stuff.

10+ years ago Golf Digest (IIRC) did a story on the impact of driver length on total carry distance.  As lighter and lighter materials came out (platics/graphites for the shaft, titanium for the head, even grips became lighter) you could lengthen the driver WITHOUT increasing overall weight and perhaps even decreasing it.  When I grew up almost all drivers were 43.5 inches.  Today the standard on the tour is 44.5 and the industry standard (for drivers sold to the masses) is 45-45.5!
You would assume that a longer lighter lever, swung faster, would result in longer drives for all.  But that wasn't the case.  Many run of the mill golfers actually saw a decrease in average total carry with the longer drivers (48 inches is the legal limit).  What happened was that even though they were swinging the longer lighter tool faster, they were not squaring the ball up as regularly and they lost distance.
I've always thought Smoak swung a bat that was too long for him.  Would a shorter bat result in more "nutted" fly balls....and that extra 15 ft of carry?
I know that this is golfy, but the same principal applies to baseball.  Given the opportunity to swing longer drivers, the best golfers in the world generally refuse to.  They know the key to distance is the ability to "smash" the ball, squaring it up.