Hi GraemeGraeme H wrote: ↑Mon Jun 17, 2019 11:15 pm The "at the same time" bit is where the issue is. It doesn't happen at the same time in one cast. If we pull back on the rod leg, we can momentarily increase the speed of the taper and leader going away from us. If we push forward on the rod tip (reducing tension in the rod leg) we can let the energy wipe off the taper.
However, this only works properly if the cast was not overpowered in the first place. An overpowered cast will still kick a bit, but not as much as if there were no taper on the front.
This doesn't really help me I'm afraid. I understand that input from the caster can change the speed of turnover. I understand that pullback can speed up turnover, and that reducing rod leg tension can kill a cast. But I'm not asking about caster input. I'm asking about the behaviour of fly line tapers.
I think Lee's videos confirm that a thick-to-thin line accelerates the loop faster than thin-to-thick (so much for air-drag!). Which is great!
The interesting thing for me now is what happens at the end of the cast, as the tip of the fly line turns over. You said that acceleration and dissipation of energy don't happen at the same time. So when does dissipation happen? At point of turnover? How is it dissipated?
I'm guessing that with no taper/no leader, some of the dissipation is seen in a wave going back down the line? But how does it work with a taper and a leader?
This is important to me in understanding the function of a front taper on a fly line, and the way a tapered leader works to deliver a fly.
Still struggling...
Cheers
Will
PS - I was interested to see how little difference there is in final delivery between the two lines in Lee's video. i'd expected the reversed line to kick way more than it did.