Haven't had much luck bending Hickory with heat ,at least not a steep bend,I would steam it or
boil it for about an hour and have everything ready before you start ,you have to do it fast.I have
used heat with some success but you have to be prepaired for it to break or splinter up with heat.
Then let it set a few days in a good dry place after you steam it.
You can put normal back set in hickory just fine with heat.Just rub it down with cooking oil and it work great.
Pappy