Thanks for the prompt replies. I was using Tri-X rated at 200. I had previously carried out an EI test which suggested 200. I used the method described in a Kodak publication which requires a densitometer. Developer is Ilfosol 3 for 7.00mins. Recently, despite my test results, I felt that my negatives of real life scenes were overexposed. I was bracketing, therefore at personal EI and one stop under. The 200 negs print too light at the maximum black time, and look quite dense. The 400 negs lack detail in darker areas. Perhaps this is not a good developer choice for this film. I use it largely out of convenience.