Got the fancy work done on the Concert this afternoon. Here is the top, with the sound hole cut. I used the Dremel with the marvelous circle cutting device invented by my Uke friend Jon Dale. If you build instruments, or just cut circles, you ought to contact "Jupiter Ukuleles" and buy one of these wonders.
Each hole selected, fit over the 3/16ths pin, cuts a different side circle. So simple to use, a marvelous tool that screws to the Stew Mac base.
Fit the tool in hole # 7 and it cuts a 1 1/8th radius circle. Slip the tool over the peg at holes 10, 13 and 16 and the big groove is cut. Simple as that.
I slipped a circle of koa pieces into the groove bordered with a couple of pieces of thin black/white/black purfling, When this is all sanded down it will be lovely. The Koa makes a nice match for the Juniper.