I remember reading this (LINK) late last year, but the NCAA actually did have someone evaluate a sample of the charge calls made in the 2012 Tournament, and according to this article, about 25% of them would be inconclusive - even on replay - using the rule as it literally reads in the book. The article also mentions the additional guidelines which were intended to improve the accuracy rate on these calls (approved last May). It would be interesting to repeat a similar study after this Tournament.
Hockey pet peeve: "when a teammate tips a puck in on you, which is exactly how my first collegiate goal against happened. Thanks, Copper."