Posted by I've on December 25, 2003 at 22:55:19:
In Reply to: Re: Re: Small Hellebergs posted by ed on December 25, 2003 at 22:13:35:
never thought a Helleberg had to have a "board-flat" rim, as does the regular Conn Helleberg mouthpiece.
Personally, I don't much care for the (seemingly most popular) round rims, but neither do I care for a "board-flat" rim.
On large tubas, I use funnel ("Helleberg"-style) mouthpieces with "Bach"-style (semi-flat) rims.