Hey everyone, I've made a few simple designs on leather in the past few months and everytime after I'm done the leather always curves up around the edges. Sometimes its almost like a bowl shape. I've seen on the Tandy site a video where the guy glues the leather to some card board and I was thinking that maybe that would help keeping the leather flat after I've finished, but wouldnt something like that underneath the leather defeat the purpose of my granite block? Recently I tried stretching the leather out some after I've finished and this helped to a point, but it still doesn't lay flat. I'm assuming this is a rookie mistake since I can't really find any information on this problem, so any help on this is appreciated. Thanks.