Hi everyone, I have been wondering about sore lips after playing on a newly gold plated mouthpiece. I had the piece done at Andersons and they did a great job with it, but after a few days on it my lips got sore and seem to have a burning sensation. The mouthpiece was originaly gold plated back in 68 but needed to be redone. I have never had this before playing on gold. Any Ideas? Perhaps the chemicals used? I am hoping it just needs to wear in a bit.