For the first one, 4 lams includeing the backing. My osage is lumber boards sanded parallel to a thickness of just under 3/16 so I might have to use 4 osage and the hickory backing. I have lots of bamboo flooring that will eventually be incorporated in my bows, but for now, just trying to get a good hickory backed flat limb stily (hill) bow that I can make with just a simple form. Adn do you think that adding the handle on a bow of this type after the limbs are glued up will hold without popping off? Or should I glue the limb lams, and then glue the handle and put a belly lam on it?