Well, I can't speak for everyone, but all I know is when I had most of my arsenal drilled the same, I was extremely one dimensional. As you can tell in my link to my arsenal, I've been able to play a wide variety of lane conditions, angles, etc....until I tore my wrist up that is.
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My current arsenal-www.putfile.com/trackbowler627
High game-300
High series-796
Summer THS avg-216(6 games)
PBA Exp. avg-131 (3 games) 1st time on Chameleon, and I just could not match up at all. 6/4/07-Chameleon again