Ok, made some good progress this weekend:
Looked good coming out of the oven the first time:
Got the overlays and back half of the riser handle on and back in the oven:
And pulled it out last night before bed to see how she did:
FAIL! I'm not sure exactly what happened, I've never had Smooth-On fail me like that even with multiple trips through the oven. I still don't know what kind of wood this is, but it's dense and oily and purdy. I may be re-thinking my oven temps going forward, room temp cure or very low oven temp cure may be less risky...
I just gave up for the night and went inside. Best not to start messing with stuff when you're upset or in a speed wobble. I still have to make sure the bow will meet weight for the recipient, so I'll get it tillered out. I can always cut that block off and put a new one on, but not 100% sure of the matching seam already deeper in the bow. I guess when I cut the shelf to center I'll find out. Want to be sure before I send it to my victim, although from a strength perspective the seam isn't carrying any load.
I may be moving to Plan B as well. Be a shame to have wasted those curly koa veneers.