Mike,
When I make fiberglass bows the only thing different I do from wooden bows is cut a shelf and I've cut a few on wooden bows as well.
The steps you guys went through to shape the handle makes it look very nice and you have about 5-7 steps more than me. You might want to do a build along that shows a simpler handle shaping method (making the rectangle an oval, and a simple radiused shelf that blends into the rest of the bow), this might clear up some confusion.
Often times I just make the rectangle an oval and cut out the shelf and round that out a bit. The last one I did had a double shelf and I cut in only about 1/8" on each side and glued on shelf material.
Since your blanks are custom ordered, having the option of a BBO blank handle wouldn't hurt. The do-it yourself guys might like it because they could be similar to the wooden/self bows they make, allowing them to use similar arrows.
Jason