Ray, I don’t usually do much portrait work (I cut mainly puzzles) but I did cut one today. I used cereal box cardboard behind 2 layers of 1/8” ply and it did help a lot on eliminating the fuzzies on the bottom piece of wood. My only suggestion, if you’re a bottom feeder, is to make sure the printed side of the cardboard is against the wood. It can be challenging to find the holes against the pictures/writing if the inside (plain side) is inside and the print is out. DAMHIK