So we were at the boutique again (don't ask) and I took a couple of photos of the small puzzle edge but forgot to ask about the strap:
They put quite a lot of stuffing in it but my thought is that it's too structured for a puzzle bag. There's very little pliability and virtually no slouch because the edge design is essentially one big piece of leather versus the multiple panels of a typical puzzle. On the larger sizes it still allows for some slouching but on this size it feels a little more like a cube pouch. The lack of a panel at the top also seemed to make the flap "flare" a bit more as you can see in the pic. We were on the way out of the store when I saw these in the window display so didn't really explore the bag properly and take out the stuffing etc, so actual use of the bag may be slightly different. Hope that helps!
They put quite a lot of stuffing in it but my thought is that it's too structured for a puzzle bag. There's very little pliability and virtually no slouch because the edge design is essentially one big piece of leather versus the multiple panels of a typical puzzle. On the larger sizes it still allows for some slouching but on this size it feels a little more like a cube pouch. The lack of a panel at the top also seemed to make the flap "flare" a bit more as you can see in the pic. We were on the way out of the store when I saw these in the window display so didn't really explore the bag properly and take out the stuffing etc, so actual use of the bag may be slightly different. Hope that helps!
Yes, I found that video with the knot! but I'm not sure if I like it aesthetically. I'm thinking about getting a scarf or twilly to cover the knot if that's the route I end up going, but also thinking about taking it to get it shortened, or even buying another strap to use instead. I'm not sure if someone has found a perfect replacement strap for their mini puzzle, and if so, would appreciate any advice on this! 
I can’t think of how else to explain it. It’s a neutral color to me.
