So hear me out. We all know that adding weight up front weakens the spine of an arrow. We know that shortening an arrow stiffens the spine. What I haven’t found any information about, is how having a footer or collar of a certain length might affect the spine of an arrow; aside from the added point weight. So if you are under spined with a 28” arrow but in the sweet spot with a 27” arrow, how would a 1” or 1.5” collar (possibly even a longer insert) affect the rigidity of said 28” spine?
Last edited: