You all should know that there will be a light source coming soon (the patent has been applied for) that will enable one to enlarge on Azo. The light will not be hot, exposure times will be relatively short, and the whole thing will be reasonably priced. So then your only question will be about which film to use and how to develop it. if I were enlarging, I would probably use D-76 to develop the film. Why make it difficult if it is not significantly better.