https://slinging.org/forum/YaBB.pl?num=1780363211

Tutorial added at link above

This is a light duty sling for throwing tennis balls. Structurally not the best idea to make a two-part pouch connected at the point of highest loading! But just because it is a dumb idea doesn’t mean it can’t be done!!!

I have not seen anything similar (likely because it truly is a dumb idea!), so maybe I have invented a new type of sling construction??

In any case, very fast to make. Basically tie 3.25” loops at the end of two paracord strings. Then connect those loops together in their centers and the sling is done.

Love to gear your comments, including your prediction many tennis ball throws before the pouch explodes in two!

Here you see the Twin Loops taped together before being whipped together

Oh, it looks interesting! The only thing is, the connection point is where all the inertia rests...
What didn't you like about the regular three-line design in the bag?

If you're interested in the direction, scroll back a few pages; erricrice made a very similar noodle-shaped construction, only using dyneema and avoiding knots.

I do like the simplicity of the design! What kind of webbing do you have? If it is tubular webbing, perhaps using a short piece of that as the connector and running the loops that make up the pouch through that tube before tying off the loops would work. It would give you a similarly quick and simple construction (arguably quicker) while giving you a much stronger connection for the center.

Brian G

Another pic

Love to get your impression, swiftcreek.

Had not thought about weight distribution…that is a very good observation!

I used figure 8 follow through knots to tie the loops. Lot of paracord in those kind of knots, so there is a chance to use lighter knots for sure. I was thinking a “flat” knot would be better (figure 8 follow thru did wind up kind of flat on one side), but was not thinking about a lighter knot would be better.

And the sling I made was 32.50” long, so a bit shorter length would make the pouch center even a bit higher percentage of the overall weight.  I did not accurately measure but I think I used around 28”-30” of paracord to do the whipping.  So the whipping paracord then was roughly the same length and therefore the same weight as the retention cord. Interesting.

Maybe there is a chance to use some other, heavier cord than 550 paracord for the whipping too??  Can it be a double layer of whipping??

Very curious what you come up with. Please post a picture.

In any case, I don’t think I am a good enough slinger to describe how this sling feels to throw. I guess it feels “snappy” and opens quickly?? My first throws vs my normal seatbelt sling were off in the direction that suggested the tennis ball came out sooner or I released early (slings were same length so usually release timing does not change for me). Maybe there is less drag on the ball as it leaves the pouch since the pouch is minimal??  Just guessing what happened, but it threw well and I really like it. I kind of think the tennis ball had a lot more spin too…but the ball went straight, no curving, so maybe wrong on this. Maybe when I use it more I can better describe it.

Honestly, I think my main feeling using this sling so far is just a feeling of surprise the pouch has not failed yet!! I am in shock this thing even works.

No knots would be awesome!

I am not that familiar with splicing. Is there any way to replace the whipping used to connect the pouch loops with a splice?

Under the whipping there are essentially two separate paracords side-by-side, running parallel to each other. Can you splice two separate, parallel cords into a single cord?

Keep in mind part of the reason for me is the whipping is stiff and so fixes the position of the pouch strings so I don’t have to fiddle around with adjusting the pouch to fit each time I throw a ball.  Would a splice be stiff too?

UPDATED REVIEW.

swiftcreek mentioned the weight/balance of the Twin Loop sling, so today I purposely tried to understand how this Twin Loop sling feels to throw.

I compared a standard seatbelt sling (with 7” long, 2” wide nylon backpack webbing for the pouch) with both the orange, mason line common whipping version of the Twin Loop and also the black 550 paracord west country whipping (WCW) version of the Twin Loop sling. Here is what I found.

Feeling due to spinning the sling:    The black WCW Twin Loop sling felt noticeably heavier loaded with a tennis ball and marginally heavier when spinning with the pouch empty.  The weight was all in the pouch, making this sling feel like it was loaded with a “heavier” tennis ball. Both of the other slings felt much lighter, and in fact, I really could not feel any differences in how the mason line whipping Twin Loop sling felt and how the seatbelt sling felt. Subjectively I would say these other two slings were the same sling in terms of feel.

Accuracy at 20 yards:     All slings were the same length so that should not change accuracy. I also threw only 2 tennis balls and then switched slings and kept repeating this to prevent “dialing in” any particular sling. Style was Byzantine.  The seatbelt sling was accurate with my typical scatter of misses generally to both the left and the right of the target.  The orange mason line whipping Twin Loop sling was similarly accurate but the misses were clustered more to the right of the target (as if the release was early). The black 550 WCW Twin Loop sling was very much more accurate. All the misses were much, much closer to the target and much more consistent-really felt like the tennis ball goes where I aim.




All in all, I like the heavier feeling Twin Loop sling put together with the 550 paracord west country whipping. At least for throwing tennis balls the sling felt and performed the best for me.