I did a HH bow blank a couple of years back.They are not hard to do in my opinion.You have to cut the shelf and finish sanding and finish.I did a HH Half Breed,I even sent Craig a goncalo alves chuck of wood to use for the riser.I added some buffalo horn tip overlays and used buffalo leather for the grip and rest.I finished it in spar urethene,steel wooled it and then hand rubbed it.It came out just beautiful with the yew limbs under clear glass and different then other HH with the goncalo alves riser.One of my favorite bows,it's a keeper for me.