I haven't shot chromes for a while, but I used to push and pull up to 3/4 of a stop. When doing commercial work in the old days, I'd shoot 3 sheets of EPP, run a test. From the test, I'd do my "Balancing" based on the test by pushing or pulling the remaining sheets. Some of the work was critical color work and processing that wasn't "Normal" caused color shifts. I'd avoid push or pull processing because of that and the special handling of the film would cost extra. From my experience, it seems that Fuji RDP or RTP pushed and pulled well.