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Release cord blocks projectile? (Read 103 times)
erricrice
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Release cord blocks projectile?
Jul 10th, 2024 at 7:11pm
 
I've been messing around a lot lately with controlling spin by supinating my wrist during release, and noticed that sometimes it felt like the tennis ball would get "caught" on something during release that caused it to get significantly less power and usually pull far in one direction or the other.

I took some slo mo to figure out what was happening and I think I found it. This particular throw didn't feel the "catch", but I think it shows what is causing it - the release cord is ending up in front of the tennis ball. I think in some cases this blocks the ball and it gets tangled, causing the "catch" that kills the power and aim.

Am I doing something wrong here? It seems like this throw was perfectly supinated (both cords perpindicular to the ground when released), and the spin on the ball was a perfect rifle spiral(although you can't see this effect in the video).

It's a little hard to tell because the color of the sling is much the same as the tennis ball, but the last couple of frames you can see the release cord is directly in front of the ball.
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joe_meadmaker
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Re: Release cord blocks projectile?
Reply #1 - Jul 10th, 2024 at 8:57pm
 
I don't think the release cord is in front of the ball.  You're absolutely right that it's hard to tell because of the color similarity.  It does look like it is, but what I'm watching for in the images is the ball pushing through the release cord.  That doesn't happen.  The release cord appears to uncoil in a smooth motion behind the ball.  If it's doing that, it's very unlikely the ball was in front of it (and making contact).

I've experienced what you're describing on a number of occasions, with the ball feeling like it gets hung up.  There may be instances where it's a matter of the ball not clearing the pouch and release cord cleanly.  But what I've found usually triggers this problem is the cracker at end of the release cord getting tangled around the retention cord almost immediately after release.  It's usually just for a split second, but it's enough that the ball doesn't get a clean release.  It's a pretty rare thing.  I would imagine that it occurs sometimes because of bad form, but other times just as a freak occurrence.

In the GIF your throw looks good to me.  If you do continue to have the problem your describing, try out a single finger loop instead of a double.
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erricrice
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Re: Release cord blocks projectile?
Reply #2 - Jul 10th, 2024 at 9:45pm
 
You're right! I zoomed way in and looked at it on a couple different monitors at a few different angles and there is a very slight shadow you can see when super zoomed in. It also didn't help that the curve on the release cord is placed exactly where the natural U shape on the tennis ball stitching would be, further obscuring it and making it look like it was in front  Grin

Glad to hear from someone else that release looks good. The hang is still a strange phenomena and has been happening a lot more with this new sling unless I oversupinate(causing left spin), but what you described might be right about the cracker getting tangled. I'll need to see if I can capture it actually happening and figure out why it's more common with this sling.

I'll give the single loop a try! The double loop has felt a little awkward to me, but with it being a new sling I figured it was something I would just need to get used to.
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erricrice
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Re: Release cord blocks projectile?
Reply #3 - Jul 11th, 2024 at 9:36am
 
I think I figured this out, it has to do with the direction the finger loop goes on your finger. Has anyone else experienced something similar?

This is my first braided sling(paracord round braid, not flat braid) and I assumed that keeping the braid visually straight on the retention cord would inform which direction the finger loops should sit on my hand, but this doesn't appear to necessarily be the case. The braid might cause a natural twist in the retention cord such that it wants to lay one way or the other that won't directly line up with the braid.

I thought I had accounted for this by dangling the sling open before starting throwing to ensure the pouch naturally wants to lay the correct direction for loading without any twists for a clean release when I throw.

What I hadn't accounted for is that I should actually be doing this AFTER throwing at least a couple times, since the pouch might want to twist one direction or another naturally due to all the myriad of forces while throwing.

Turns out I had the finger loops on backwards, causing the pouch to want to twist the wrong direction during release, and getting worse as I continued to throw more each session as it continued to twist further the wrong direction and train the retention cord to twist that way.

Once I put the finger loops on the correct direction(and now marked for next time), I stopped having the yanking tangles and proper rifle spiral was MUCH easier to accomplish.
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IronGoober
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Re: Release cord blocks projectile?
Reply #4 - Jul 11th, 2024 at 11:02am
 
I think the cause is probably as you state.

I've experienced this tangling. It happens often if the sling has a cracker. See the first throw in this video. If you hit "<" and ">" you can go through frame by frame. But you can see the release cord get tangled on the retention because of the cracker and likely a bit of a twist, as you pointed out.

https://youtu.be/rEUM6-XarKM

Using slow-motion video is a great way to troubleshoot! glad you are already implementing it.
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John R.
 
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