AncientCraftwork wrote on Jun 17
th, 2021 at 5:42am:
it's the cord position in the end that matters.
J, yes that is correct. Of course the wrist position will not FULLY dictate how the cords, But the wrist is a big factor in controlling cord position. There are other factors that come into play, such as your windup, pull through, the sling itself, the weight of the ammo, and how much tension there are on the cords. But paying attention to your wrist will allow you to better control your release to a large degree.
One thing that I haven't heard you talk about in your "oscillations" theory (which I think you should used different terminology, I think oscillations is confusing), is that the twisting of the cords that can cause an "inline" release can be caused by insufficient tension on the cords. With lots of tension, due to heavy ammo, or hard acceleration, any twist will be rapidly removed because the sling will quickly reach an equilibrium between both cords. It is an important consideration when you talk about spinning the sling vs a single rotation. The spinning puts little tension on the cords, so they have a tendency to get twisted. But a single smooth rotation rapidly accelerates the sling with lots of tension and the cords remain aligned through the entire power stroke. The difference with spinning is that the cords can be twisted before the power stroke and not have enough time to untwist before release.
TOMBELAINE wrote on Jun 17
th, 2021 at 8:42am:
Before discussing, have we understood the same thing ?
@Tombelaine Yes, I think we are all discussing the same thing. The magnus effect will come into play when a pebble is released "inline" or if it is spinning like a top (the toy), and it will curve. A perfect rifled release will not affect the trajectory and cause it to curve, it will follow a path due to gravity and aerodynamic drag.