Yep, I regularly kerf iron wood, elm, and sometimes Osage. Especially on larger diameter tree's. Since your stave is wider than the actual width of the bows limbs you usualy have plenty of wood to left to follow the longitudinal grain later when laying out the bow no biggy. I don't even cut trees that would have enough twist to completley run off a 3" wide stave, I leave those in the woods.
I have had bad luck with hophornbeam and grubs........in fact its the only wood I have had problems with.