hope your gonna go for less of an angle. idk how much draw youd be able to get with just a wood bow.
my thinking behind the v-splice.. like i said, id use a big block for the handle, glue them on, then shape the handle. then lay the sinew over that, that way, once the handle is shaped, the sinew will help to reinforce the whole joint, as it will be applied to all pieces of wood involved in the joint. id really like to see the mock up of yours though. ive got pieces of osage drying right now. should actually be ready to be worked..