I am making a recurve flatbow out of two hickory sledgehammer shafts at the mo and am planning on backing it with sinew. I've got the first vol of the Bowyers Bible so have a fair idea of how to prepare and apply the sinew but was wondering if cow ligaments/tendon are ok to use? Has anybody tried using them and if so any tips would be greatly appreicated!! Also what would be the best method to recurve the limbs and how far down the limbs should the recurve start? I would like to make the recurves static so as to get the full benefit from them.