I'm new to pipe smoking (only about 2 months now). I have 2 different pipes which I alternate between. My first pipe is a cheap one I bought on ebay that I spent $6 on. The 2nd is a briar pipe I bought at a local tobacco shop for $25 after determining that I'm actually enjoying it. On my more expensive pipe, I'm having an issue where the finish on the bit is flaking off in my mouth. I am a bit of a biter, and have noticed the briar pipe shows more teeth marks (I'm assuming it's because it's a heavier pipe). Has anyone ever experienced this issue with any other stems, and how can I fix this?