Osage is one of more popular selfbow woods, but as I understand it (never tried it myself) it can be diffcult to work with for a few reasons: It's seldom straight, it usually has knots, and the growth rings are very tight. It sounds like you may have avoided the first two problems anyway, so I'd get some good instructions (books, web sites, and/or videos) and start shaving. Dean Torges is supposed to be one of the authorities on osage. Gary Davis is another that knows a lot about selfbows. I know Dean has at least one or two books out on it, not sure about Gary, but Gary does set up at several different shoots through the summer and helps folks out. There's also the Traditional Bowyer's Bibles that might help.

Chad