"Cork" for Denis Wick Tuba Practice Mute?

[Z-Tuba Dude]

Hi,

I have the Denis Wick practice mute, but I find that the "cork" (whick looks like thin weather stripping)

Denis Wick Practice Mute - mark up 1.jpg

...is too narrow to seal any of my tubas (even the Rudy 4/4 F tuba, and the Miraphone 184!).


I bought some weather stripping with the idea of placing it beneath the crown of the mute,

Denis Wick Practice Mute - mark up 2.jpg

...thinking that it would allow the mute to accomodate a greater variety of bell sizes.

What do you guys think of this "fix"?

If your opinion is not too favorable, my question is: where can you get the "official" weather stripping stuff for DW mutes?