I've just gotten a set of film hangers together to try processing my 4x5 negatives via dip and dunk, but I had a question about the types of hangers. I have 6 Kodak (4a I think), which have more holes, and have open bottom corners. I have another 6 labeled 'Woods' which have somewhat fewer holes (only on the sides not on the sides and back), but the also don't have open bottom corners. Will the woods holders have issues with not allowing free flow of developer around them? Has anyone experienced differnances with the types of hangers?