I just completed the 2nd project from the Leatherwork School book. I used buck brown Wickett & Craig and red Arlan Goat Skin spit to .5 mm for the lining. I forgot to do my binding stitches at the top of the pocket seam and I tried to smack the pricking irons all the way through the leather instead of using the awl this time. I found that my stitch line on the back veered off a bit and came dangerously close to the edge of the project. perhaps the irons were not perfectly straight when I stuck them with the hammer. Any suggestions on how to ensure straight stitching when striking the irons all the way through layers of leather? All in all, I learned a bunch. I'm very happy with how this came out and my wife seems to love using it at work in the airlines. So I'm chalking this one up as a success. On to project# 3 which includes a zipper...im not gonna lie...I'm nervous about the zipper part but it's all about getting out of your comfort zone in 2019.