[TonsOfFun]

So here is the situation:

I have had my classic mag for about 6 months now, and up until this point is has worked beautifully. My current set up is a classic mag, with classic valve and level 7 bolt. I usually run an invert too hopper on it (motor setting: 2 mic setting: 2 feedstack monitoring on). Last weekend i tried out some RPS premium, which is bigger than most paint i had used, and it started double feeding and chopping like a mad man. I coul not go half a hopper without a double feed/barrel break/chop. Anyone know if this sounds like a mechanical problem or just that i need some more durable paint?

Thanks,
Travis

EDIT: Oh yea and it has been short stroking more than usual.