I have a 2HP Super Dust Gorilla with the Onieda bag gripper system. I am havign trouble keeping the bag from getting sucked up into the cyclone. I have tried putting cuttoffs into the bottom of the bag, no help. Now I am placing several 9" by 9" clay tiles into the bottom of the bag, and tying a cord tightly around top of the drum on the outside to help keep the bag from moving. I also put an electical plug on the vacuum pump so I can plug it in without running the collector to suck the bag down tight before I start using it. Not ideal. I've been thinking of buying a high CFM pump. Anyone else having problems? Thanks...joe