Per your quote:
“One trick I learned a while back, when cutting the perimeter, do not cut across the bottom on the first side. Only do it on the 2nd compound side, this way the piece stays anchored in the body,and does not bounce. It also gives you the most accurate and flat bottom minimizing putting it onthe belt sander to flatten the bottom.”
To me, that is the key to compound cutting when the opportunity is there on a flat bottom. Doing that, there is no need to take it to the belt sander.
I’ve only made 3 chess sets on the scroll saw and what I’ve found is to do only a few pieces at a time. If I do more than 2 or 3, I start to get sloppy.
By the way, that is a very impressive chess set! Makes me want to make another set. May I ask where you got the patterns? I to would like to see the set when it’s finished.