it's pretty wild how powerful this machine is, kinda scary. The leather scraps I used are the same as what I use for making sheaths; 3 layers of 8/9oz leather. Khuk sheaths will likely be 3 layers of 10+oz leather, which is likely around the maximum I'll be able to fit. It's cool how wide a range of stitch lengths are possible, as you can see in the pic.
I think I'll mock up a shiv sheath over the weekend