I used to cut my own, but found with the wastage and bad corner cuts (my own fault of course) it was cheaper to get someone else to do it for me. And the adhesive isn't cheap either is it? The gallery I use in West Cowes, here on the Isle of Wight, use an almost verticle cutter which is guided by computer software. I get perfect corners every time and can have whatever mount size that the software can produce. I wouldn't mind one of these cutters myself, but I can have two 5d MKII's for the price they cost...
