Some useful ideas in there but yeah your not watching this guys technique for pointers.
Like the straw idea. Might try this with leather.
Pouches that cup heavily like the one at the end of video will be inconsistent on realease.

Oh but the way that he is holding the sling is totally wrong. That’s what I meant to draw your attention to. They are actually holding the knotted end in their hand, as the retention cord. And throwing out the looped end as the release cord. So they have it completely backwards! I thought it was funny 😆 Like what’s the point of braiding in a loophole if you don’t use it? 😆

Lol - ah how we forget.
for a first go he's actually pretty good.
didn't take him long to work out helicopter sucks

And the marshmallow lobbing was surprisingly accurate.

The straw thing is great too. I might actually give that a go.
Couple of the underarm throws were pretty good too.

So he hasn't worked out how to hold it - that makes it even more impressive.

We were all beginners once, so don't be so down on people

Some very good ideas here for sling construction. He admits that he is new to slinging - so obviously lots of better vids on how to sling. He has a lot of good videos on fun weapons and targets to make in the basement. His blow guns are very clever.

"We were all beginners once..."  I'll say.

My first several sessions, I could throw the rock harder and further by hand than I could from a sling.

A lot of PM's to and from Jaegor, who basically coached me from another continent in a language that he didn't speak was all it took.

Has anyone PM'd the guy and let him know there is a website devoted to all things slinging?  Or offered to coach him?

I just emailed Grant, inviting him to join the forum.

Well - so much for the email. It bounced right back.