I got some Christmas panels on sale. Florals, black background with a gorgeous printed metallic filagree frame. Cut the panels out along the frame. Messed with it for a day and could not get them squared. I'm like you in that it would have driven me crazy to have them off square, so I cut the border off (which sort of defeated the purpose) and just put black sashing on it. I was so ticked, I just gave it away when I was done. I still have the wonky filagree strips around here somewhere...