I need to drymount three 8x10 photos to foamcore. Just curious about the easiest way to flush trim the photos after I have them drymounted. Is the best way to do this with a straight edge and razor knife? Should you try and complete the cut in one pass or several? Is the Fletcher 3000 of any use for trimming foamcore? What is the best method for accomplishing this task? Thanks in advance for any suggestions!