Mid to highlight tone is not the most tricky thing to squeeze out of the film. Indeed, any reasonably buffered, balanced fine grain formula should do that part. Since you are shooting LF D-76 stock or 1+1 should work very well. T-MAX dev may compress midtone a bit in exchange for stretched shadow and highlight. If you want nice midtone with most modern films, OVERDEVELOP slightly.(posted 8169 days ago)Note: Use good lighting for comparison. Exotic chemicals won't fix lighting failure.