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even something as simple as having fast OF's in Safeco -- as opposed to the type you should have in Fenway -- can help. Even before you get to the question of whether a Boston LF changes some doubles into singles...
DO think that baseball has the smallest psych skew, but do think the advnflstats guy is on the right track with his doggy-on-his-home-lawn wiring. AL hitters right now are outSLGing their road counterparts by about 440-410. That's pretty big.