I have been filming myself quite much lately in order to analyze more details about haul adjustment - especially when using different casting styles.
To me it seems important to realize, that we create hauling speed (additional speed of the fly line thru the guides) not only by accelerating the line hand, but at the same time accelerating the stripping guide in an (as much as possible) opposite direction (away from the line hand).
If for example I use the open stance and do not twist my upper body on every forward cast, this means I create a serious percentage of hauling speed (speed of the line thru the guides) by rotating the the rod (via rod hand) and due to that accelerating the stripping guide almost opposite directed to the line hand. Here I want to match max speed of the stripping guide with max speed of my hauling hand in order to make the line run thru the guides as fast as possible.
Since max speed of the stripping guide has to happen significant before RSP1 will take place, I want max line hand speed to happen before that, too. The distance for deceleration is quite small for the line hand here. So if I have huge rod bend to straighten still, it easily may happen that my line hand has stopped before the rod hits RSP1 (saw that in many of my videos of different casters, too). If the line hand was stopped too early, I may run into trouble with rod tip path...
Using the same style in the forward cast I can easily start the line hand acceleration more delayed compared to the back cast. And since my line hand will be accelerated more down (then it was in an almost horizontal path during the back cast) I will create significant less hauling speed by accelerating the stripping guide here (compared to the back cast). Not too easy to accelerate line hand and stripping guide almost opposite directed here (compared to the back cast)!
Still I would want to match max line hand speed with max speed of the stripping guide. Since it easily happens that I start to accelerate my line hand pretty late during the stroke here, and at the same time the distance of deceleration might be a little bigger than it was for the back cast, it easily happens that I still move (decelerate) my line hand while the rod hits max counterflex already. As Mike mentioned all that happens really FAST.
In my understanding this is no problem while hauling in false casting. But when shooting my line on distance I want the line to be free to shoot at RSP1. So I have to take care of "an early enough" release on the forward cast.
Watching the picture serious of Steve Rajeff shows how long his distance of deceleration for the lind hand on the forward cast can be! Pretty obvious he has to relase the line early here in order to not still keep it all the way into rebound maybe. John could be spot-on with "leg-position" here.
Now when trying to put all this in easy words for a beginner


And then feel the speed up of rod rotation happening parallel to the speed up of the line hand.
For the shoot think of an early release. How early? Not too early. Stop and at the very same time let go. It's not stop and THEN let go, but stop and let go in the same moment.
Of course it only can be a general recommendation to start with and then we have to work our way thru different techniques and change the force application via both hands in order to get (feel) the full picture and become a more variable fly caster.
Does that make any sense to anyone?



Greets
Bernd
p.s.: This is the style I was thinking about in this post.
A few more thoughts are on the fp today.
