I'm digging up and going through all my old treadle hooks and am noticing that the ones that have come with the last two Macombers that I've bought are much longer than the others. I thought I already had two different sizes-for CPs and Bs, but these are even longer. What is the length of both the old style heddle hooks and the super hooks for the Macomber Bs? Perhaps an analogous question might be: What is the optimum distance from the front of the treadle to the floor? Thanks.