I do all mine in the release. Its hard for me to do but when the lanes are breaking down and I need to change just the slightest bit I can, but its mostly in my release.
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Right Handed bowler, tweener/cranker, 16-19MPH depending on Lanes.
My Arsenal:
Columbia Action Max
Columbia White Dot (big hook haha)
Dyno-Thane Threshold
Ebonite Angular One
Ebonite Xcel Pearl
Morich Awesome Hook
Morich Total Shock & Awe
Storm Double Agent
Track Robo Rule