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Walter & Group...
[GH] My question: "What I didn't find, was any statement that soft stops result in greater energy transfer, however. Perhaps it appears in a different study...(????)."
Gordy
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>From Paul Arden in answer to my question:
Hi Gordy,
the hard stop/slow stop came from Grunde's block on spring model. I thought these had appeared here? Anyway two computer modeled springs are accelerated. Spring 1 acceleration is stopped immediately and Spring 2 decelerates over a longer period. Block 2 ends up traveling further.
Cheers,
Paul
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Paul,
We know that computer models often teach us what is happening in life beyond the scope of our own observations. However, they are not always representative of what happens in the real World because they don't take into account each and every variable. Probably true of casting as well.
For example, the computer analysis showing the stop sequence in terms of deceleration over a longer period of time (Spring 2) leads us to think that the slower, "mushy" stop would result longer casts much if not most of the time.
This doesn't explain Al Kyte & Gary Moran's finding that the elite casters in their study gained greater distance than the good casters and had more abrupt stops. I don't know if they had smaller arcs.
Also doesn't give insight as to why our championship distance casters have shorter (abrupt) stop sequences. Perhaps it is because with their competition fast/stiff rods and their accustomed distance techniques, they cannot apply force through a narrow enough arc when using anything but an abrupt stop. Here, they are using great swing-weights as well which, I think, would make a difference. *
When it comes to teaching fly casting to beginners through intermediate level, I wonder if any of our instructors actually teach a prolonged, "soft" stop when they are trying to have their students make small loops? I don't know any who do.
Gordy
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>From Ernie French:
Gordy,
I agree with Paul Arden in that there is a smooth transition between power stroke and follow through and the rod only stops at the limit of extension which in most cases is at the end of the follow through. The actual shooting of line occurs at the point at which all the rods energy is transferred to the line and we are just aiding the line through the guides in the follow through.
Ernie
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