For some reason on every bari mouthpiece that has any sort of baffle to brighten it up (i.e. Yany 6, Jody Jazz HR* 6, Rousseau JDX 6), using a metal ligature on those pieces results in my hearing a metal ringing in the overtones. For me it's like listening to fingernails on a chalkboard. While I can't stand Rovner ligatures on alto or tenor, they work really well to dampen these overtones to that I can bear to play a jazz mouthpiece. I especially like the Rovner Mark III on Bari. Does anyone else run into this problem and if so, how do you deal with it?