Gus,
The little flaps are called "corner reinforcements" in Mr. Albert's book. By the time you stitch through both sides of them, the front and back of the pouch, and the welt, it's pretty well reinforced!
Jason,
Those white hides are super raw material, and a bargain at the price! They took the dye very well, and I really liked working them. I used the Fiebings mostly because I'd used it before, but I'm going to make some of the steel wool/vinegar stain and try it on some test pieces. I have enough for several more projects before I'll need a re-supply...
Greg