I have several boxes of HP5 (not HP5 plus) in 8x10 that I am using to contact print. So far I have been using ID-11 to develop the film and the contacts are rather disappointing. They are flat and lack contrast, compared to enlagments made from 4x5 HP5+ developed the same way.
Therefore, I was thinking of using Rodinal to add some snap to the 8x10 film. Any other suggestions for devlopers, and a time/reccomended dilution for the Rodinal.