I have an ash bow, shoots nice but the draw weight changes with humidity and if its left strung too long. To unpredictable to hunt with.
Friend of mine made one and backed it with rawhide, very nice, but at 70# to much for me, this you could confidently hunt with.
If the ash has been coppiced you’ll get some nice straight grained timber if its from a wild grown tree it can be all over the place.
Interested to see what you make of it, Mark.