Hi Gary,It began with trying to dampen a strong backcast, since a fast line is needed when the backcast is low to the water – a trajectory necessary to get back under low branches. I concentrated on delaying, somewhat, the return feed of my haul until the loop was about to turn over. If you look for it, the line will ask when it wants this feed. My thought was that I would reduce any kick by doing this. It seemed to work. Then, if I waited until I felt the rod acknowledge the weight of the extended line before I began my deliver stroke I began to throw nice straight fly legs time after time. No dangle, no waves, just a nice straight fly leg.
Since a tailing is a wave in the fly-leg and the fly-leg is formed pre RSP1, I don't yet see how delaying the return feed of the haul would help to eliminate any previous cause for a tailing. I take it, you were referring about the return feed done by the hauling hand and the hauling hand only, right?
I agree, that such a delayed return feed might help to increase line tension during counterflex and thus reduce the kick then to be seen in the rod-leg.
Having played a lot with when and how exactly return feeding the line hand I also agree it can help the final turn over - especially for long carries.
When not delaying the return feed you still have tailing issues? Maybe it did unintentional help you to smoothen out your line hand pull?