I'm fairly new to all this.So I made some nice 1/2" wide wraparound bracelets with spots & pyramids.I made them from 2-3 oz .veg tanned leather.I stained them with oil stain & satin sheen.When I flex them to wrap around the wrist the leather cracks on the surface.Am I using the wrong kind of leather or is it possibly of poor quality?If so,what would be a better choice?