I like Columbia Products, I bowl with a 16# The Beast, 2 16# Piranha's the oringals 1 drilled leverage the other drilled just off label, and now a 15# The Beast Master drilled reverse leverage. This ball is something else it rolls early so i'm using most of the lane it is a consistant hook. with my Piranha leverage I bowl down 5 it flips 3/4 down the lane and into the pocket.With  The Beast Master I though from 20 out to 5 then to the pocket it is a constant arc itis a pound ligther but it hit harded that my Piranha booth balls are sanded, this is on SYN lanes in heavyoil.