| I tried them on several horns and the only one that really worked for me was a Smith Watkins cornet. I tried them on a Wild Thing and a Callet Superchops and for me they really didnt work well on these 2 horns. Made the horns (esp the Callet) VERY sluggish.
Try them though, you will notice a difference. It might not be for the best though.
Alan |