I tried some bone that broke quickly (during shaping). I don't have alot of antler, barely any at all. I do, however, have some red bulleta and dense Osage pieces. Both of these woods seem very hard, and under pressure, just smooth off, unlike hickory, red oak or whatever, which starts to crush slightly on heavier bows with Dacron strings.
My FF Plus strings are 14 strands, with six strands of Dacron spliced into the loop, and a timber hitch tied into the other end. I'm worried that trying to use these overlays will wind up with a broken stave, and I don't want to wind up ruining a good, straight stave because I couldn't wait to get the proper matierals.