Most old hats will certainly already know to consider this but it may not be obvious to folks just starting out. It wasn't to me. A while back, just after I started making my own bands, I had some serious trouble with leather pouch failure. Was getting scraps from leather workers and had no idea what to look for. I usually just pulled on it to see how stretchy is was. Now, when checking out leather scraps from shops or "raccooned" from other things, I do a "tear test": [ame]https://www.youtube.com/watch?v=IohD3f7FgjM[/ame] I don't know if it was the type of leather or if it had been sitting on the dashboard of a hot car for a year, or if it was just way too old, dunno. But I ended up with a whole stack of crap pouches. Silly.