If you're a cranker, average speed (15-16), high tracker, why does it seem like the label leverage drilling works well?  I've seen bowlers put this drilling on many balls, on symmetricals w/cg in palm, pin above & right of ring, and asymmetrical, where the mb is on the trackside. thoughts?  Most of the balls used seem to have lower rgs, higher differentials.  I was told it's a tamer drilling, and its put on stronger balls or various combinations for various reactions.

Edited on 2/19/2008 8:58 PM