Hmm, just found some interesting case studies that seem to make it appear as if contact and split are more dependent on each other than I thought. Check out this guy I just found in Uecker:
J.P. Diaz. Very similar contact player to Yeats in many ways. 93 contact rating, 100 speed, and he's even got a 93 bunt rating. His biggest difference (besides the existence of a decent amount of power) is that his splits are only 62/65, not nearly as high as Yeats'. The result? A .263 batting average in 1,305 ML at-bats.
Now, look at
F.P. Palmer. 98 speed, splits of 94/91, and an 82 bunt rating. However, his contact rating is only 22. The result? .254 batting average in 1,487 ML at-bats.