Have actually wondered if what would happen using Pyrocat-HD, 1:1:1:100 with Rodinal..and if it would bring anything to the mix. Would want to shoot at least 3 negatives, on in Pyrocat-HD 1:1:100 semi-stand, Rodinal 1:100 semi-stand and then the last one 1:1:1:100 Pyrocat-HD + Rodinal - any thoughts...