I glued on my scales set my mosaic pins and mosaic lanyard started to sand with like 60 grit on slack belt mode and over sanded. So I then cut off the bad area and reattach some sycamore to the camphor burl 2 days later I was ready . I first started to hand sand with 150 grit and thought A WHAT THE H ___ L and in 3 second sanded down to my file work and ruined 4 hours work . I never worked with camphor Burl before and it will be my last.