The other day I had occassion to do some test casting using different flylines. Now I can understand that some lines are slicker, softer, have more/less memory than others. There are probably some differences in the taper as well. However, can someone tell me why the first 40 feet, or whatever the AFTMA weighing system calls for, feels a lot different in the weight and thickness when comparing a weight forward to another weight forward and a dbl taper to a dbl taper? I was under the impression that the weights of flylines are set for the first 'x' length. So, despite the taper or the thickness, shouldn't the weight of a 5 WFF from company A be about the same weight as one from company B? Sure felt a lot different to me.

Allan