I did a little more today. First, after removing wood from the belly the backing was gonna be too thick so I sanded it down a little. I just got a new 40 grit belt for my sander and was worried it might take too much off but gingerly I ran the back over the sander with 6 or 8 light pulls on each limb and got it down some. Unfortunately the dyed design on the back was removed. I can easily replace that or come up with some other decoration but I'll worry about that later.
Here is the backing thickness before the sanding...
...and after sanding and rounding off the edges. Not much difference but if necessary I'll do it again.
After that I sanded the backing and corners smooth I cut in the string nocks. Usually I'll come down 3/4" on the back and 1" on the belly side. This gives me about a 45deg angle. This time I went 1" on the back and 1 1/4" on the belly because the ends were uneven.
These are temporary nocks anyway just for tillering and will be removed when I narrow the tips. I like the tips to be wider to start with. Once I go to low brace and see how the string tracks I'll shape the tips close to finish size and add overlays.
Then it her first trip to the tiller tree. I exercised the limbs then took a look just to see if things are relatively even. they seemed to be OK...