I dont think I've heard about factorial development*, but I'll check it out. I dont have a copy of The Print, but my local library does, so I'll try to pick it up whenever I'm over that way again. I'm all for whatever option will give me the best out of my paper negatives.
BTW, I'm aware that Fomalux 111 might not be the best choice for paper negs, but I'm willing to give it a shot since it's just sitting there doing nothing right now
*If I've heard of it, I havent heard it called that