Hey gang, I am starting a west coast style paddle bow, 44" modeled after the one in the TBB1 page 176. The wood I have selected is a local Sassafrass I cut down in January, it is bone dry and I have the bow laid out, cut to profile and I induced some mild reflex in through the handle/mid-limb area and hope to steam bend and flip the tips. My question is one of tillering...these are short, stiff bows and since it is Sass I want to make sure it survives so I am going to be rawhide backing it. Should I back it now before I do an tillering work or wait until I have it on a short string and close the correct profile. I am worried the Sass will take set during the tillering if I don't back it prior but since I also want to steam/flip the tips and in sort of a catch 22.
Any help or advice would be greatly appreciated.