Hello, I would like to use the sheet film adapter, however sheet film size 2.5 x 2.5 is not available. Who can offer some tips or suggestions. I'm thinking of using Tri-X 4x5 sheet film and cutting it down to size using a rotary cutter with the emulsion side down. How much do I risk of scratches ? There are some exotic films that offer 2.25 x 3.5 size but I don't look forward to changing to new chemistry from my 4X5 experience using HC-110.