well i got to test the new line out yesterday. it worked better, definitely an improvement, but they still don't slide down as well as i would like. i have to give it slack, and bounce the rod/line to get it to go down. i think the shower curtain rings might be part of the problem too. they're about 7 or 8 years old and look to have some kind of corrosion/aging to them which does have a bit of a texture to it. i'm going to try a scotch bright pad and see if i can clean them up some, smooth them out a little. i wish i could find some type of hard plastic that i could line the inside of the rings with. that would slide really well i would think.
i also had the idea of reversing the original big jon line.. now that it's all be removed, i could wind it back on there in reverse, putting the weathered section on the reel.