This one has gotten some very good comments. I have one on order. But my opinion won't be worth much since it will be my only tuba mute. viewtopic.php?t=17935
I currently have a Denis Wick that I use with my Allora 186 (Miraphone copy) and really like it a lot. I've also used the Humes & Berg aluminium symphonic. Both are good mutes but I prefer the Wick.