Hell, I'm confused as hell too. I've got polys. I've got tips. I also wonder about another quandry for me. T-14 in different lengths will alter your casting stroke a bit, right? Why not the same length of varied weights? 10' of three or four densities? T-8, T-11, T-14, T-17? Same length, same casting motion? Wouldn't that be better for a learning hack like me?