i just got an 18” Yamaha stage custom. I like the idea of playing it without a riser. I’m happy with the sound I’m getting but when I burry the beater in the head I can’t prevent a “buzz roll” type rebound before resting on the head. When I lean a big pillow up against the front head it stops but no other type of muffler, inside or out, works. Plus I like a little more open sound then that. Any suggestions? Is this just what happens when hitting the head farther out away from center?