Need some recs for best way to kill a vibrating speaker Grill. Poly with metal screen with screws/grommets in each corner. I play Electric not URB but few people in the Electric forums would even know the amp let alone have one. I know URB players know them. A universal issue no doubt but thought someone with a Poly in particular may have some nifty fix. ===================================================== "The only Holy Grail thats exists in the bass world is not in the bass, it's in the player."