The Global 900 Break Point Pearl works great on the Viper and Cheetah.
I have used the Storm Hyroad and it too works good on the Cheetah
and Viper. I do like the BPP much better though.
My BPP is drilled 5 x 3, pin above my fingers.
When the 2010 Cheetah championships were on youtube, Norm
Duke, who won the tournament, was using a hyroad and a
second dimension. Chris Barnes - Columbia Freeze.
Sean Rash - Brunswick Python. Others - Storm Natural.
Ebonite Gamebreaker.
I did notice, those using the Natural were having issues with the
10 pin. The Natural is a urethane ball and not a reactive resine.