First, this is tied with the best forum ever (the other being the classicflyrod forum, for bamboo fly fisherman). I've been one of those lurkers and gotta say, the first bow I've made is due to this forum. It is amazing to find folks with such an arcane craft so willing to share advice. My question is regarding the tillering string. What knots should be used and are there any preferences for material. Also, when tillering, how tight should the string be before pulling the bow down? Anyway, any advise regarding this would be very helpful.