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Actually, I liken Kao-Kan to Byng-Hyun Kim. The novelty and the funky motion and the heavy movement and sinking action on the pitches, etc. He's not exactly the same, but I could see him pulling a 3-year run like Kim's prime as a reliever where he runs ERAs under 3 and piles up the Ks before the league finally books him and he disappears.