Well I know the film pack is ok, I put the pack in my pinhole 100 and got a image. I have looked at everything on the 150, back mounting etc. Since this was a experiment to see if I had the skills to try a 110A I used a back that does not use rollers so my investment was small. Looking closely at negative I do not think the spreader bars are opening the chemical packs so no development. Something so simple, but I do thank you Rick. Tell your son thanks for is service.