hmm... search for "push processing" gets porno... rushes off to google... Sorry, Slynk, cannot be of much help. I used to push B&W, but then it was using special developers (like acufine). It was done then because ISO 400 was about as good as it got, and sometimes needed ISO 3200 to deal with darkness. Folks talked about pushing color, but it was mostly wishfull thinking. One suspects there have been some improvements, (where's Dobby when we really need him...). Best guess here would be to ask your semi-pro lab what they would recommend for this specific case, (pushing Superia by one stop). If the color goes strange, there's always photoshop. Please let us know results. Post examples! As for "pulling", with B&W, in general longer development times give (somewhat) increase in exposure, but lots of increase in contrast. Shorter development times give (somewhat) decrease in exposure, but noticable decrease in contrast. Changing the development time is therefore more useful as contrast control than as exposure compensation. Folks like Ansel Adams used this a lot to fit wide brightness scenes into limited film range. Useful if developing individual sheet film shots; less useful with a whole roll under varying conditions.