Aside from the whoopdie doos, going around knots, and straightening things, etc., the dimesions of a given design and desired weight always seem to end up pretty close to the last one ya did, so you may as well get close from the get go, huh? Your going to remove that wood at some point anyway. I go from drawknife and/or band saw to farrier's rasp (an often overlooked and underappreciated tool) to rough out the bow to floor tiller, then take the usual facted tillering approach with scrapers, rasps and bowyer's edge tool. I have always used Dean's tillering method, because that's what I learned when I started out. It works, and it's pretty predictable. I just imagine I'm making a 90# bow before going to long string, so it's bending fairly decent, just heavy for now.