Only problem i've had with the system is i have had several (6) ball-it's where the white it came loose from the 1/2 inch portion that the molly goes in. The slugs would just turn and not lock in place. Vise has since revised the ball-it with tabs the fit into the slots in the base so it can't turn. They also replaced all that i had break. They are very helpfull and concerned with making sure that they are and stay the best product out there
--------------------
Arsenal: Mega Friction,Mega Recovery,Break Point,Break,Clutch,Clutch Pearl,Maniac,Awakening,Lunatic,Heist Pearl,SX-1,Link,Hype urethane,Desperado,Global Globe, 14# golden globe
http://s485.photobucket.com/albums/rr220/stormed1/My%20Arsenal/Bowlingboards.com