This may be a pretty simple question, but I wanted to ask anyways. I did a (for fun) shoot of a surfer the other day, and Ive found that of the 4 rollls of b/w Ive shot, the 2 Ive developed have been underexposed. Probaly a stop. Mostly due to me metering in average, and the subject being a little back lit. I havent processed the other 2 rolls, but the first 2 Ive having a bear of a time getting a good scan out of it. Theres details in the black, but its just too mucky... so, I would like to try to salvage the other rolls if I can. How should I process these next rolls if I want to up the exposure a little? (the film is Across 100) THanks!