This was a simple D bow with a twist. The scalloped edges pose a challenge that can be easily navigated if a bowyer keeps one thing in mind. Ensure the bottom of each scallop is in line with the others. (See the diagram) It seems each scallop would violate the grain begging to break in any of a dozen spots. The reason it does not had to do with the triangular sections formed between the scallops. Each triangle does not carry any strain as the bow back is stretched. Making sure scallops are precisely lined up becomes vital. If on scallop dips too far into the limb then fibers that do take the strain will be violated and lead to a break. I broke one of these initially and after the bow autopsy that is exactly what happened I dug too deep into the bow with that scallop.
Line them up and you should have success. Oh also keep the cross section square. Do not round the edges of the scallop. That too can set the stage for a fatal break.
Final stats 47 inches long (per Hamm and Allely EoNABA&Q vol. 1) handle 1" wide, 3/8" thick, mid limb same thickness but 7/8" wide. The bow pulls 35# @ 24 inches. I am not willing to pull it beyond that distance due to the short length and no backing to shore up my confidence. The bow shoots nicely with no hand shock. The bow took over an inch of set but not bad. I still have to bend it to string it.