I've practiced a lot on soft chrome tanned leather thats 1.2mm-1.5mm and its has been a struggle to get consistent stitches for anything longer than 5 inches. I have noticed that on some stiffer scrap buffalo piece that i don't have that much of a problem stitching.
My question is will this leather
http://springfieldleather.com/32756/Side%2CBag%2CMilano%2CEarth-Tone/ with a bag stiffener or veg tanned leather wedged between a lining piece be able allow for good looking stitches.( will be folded into itself so it is - the leather, the bag stiffener and lining X2)
Also can someone clarify if pull-up leather can be hand stitched like veg tanned?