I also used Polar Ice at the weekend and experienced a fair amount of bounce shots and ball chops. Will go for Marballizer next walk on.
Define chops:
Barrel breaks and chops are often mis described
A chop is when the ball is literally chopped because the gun fires when the ball is part way into the chamber. Force fed hoppers and eyes are both methods to minimise chops. The force feed makes sure the next ball is ready and then pushed into place when the bolt goes back, eyes are designed to prevent the gun from firing if the ball is not ready
If you get a chop then it means the ball was not ready and is indicative of another problem
Breaks are from any point after firing where the ball breaks in the barrel
This can be a problem with the paint, with the barrel or even bad conditions
Where / when were the breaks and what were the symptoms