As some of you may or may not know, I have suffered from allergy/sensitivity from various types of metal mouthpieces for quite a while. I'm able to get by with stainless steel and titanium, but neither are 100%, so when I have a random flair up, from extended rehearsals/performances, I have relied heavily on Kelly mouthpieces, and in particular, the Lexan Kelly 50, which had always worked surprisingly well
I experienced a flair up a couple of days ago, probably from a lot of playing/performances. I was asked to do a last minute BQ gig, that included "My Spirit be Joyful",