hope everyone survived the big rush in good form....I need some info, please...got a pre mounted photo(on white "matboard" 1/8" thick and the rear side feels almost waxy). my problem is I need to put this into a sink mat(to allow matting on TOP of the pic) and the print/backer is bowing toward the viewer and just doesnt seem to want to straighten out. I put it into vacuum press for 15min at 125' but this backer is very stought(& weighty) and wants to retain the bow. havent gotten to play with this type of backer board before and anyone's experience with it would make interesting reading...thanks all.