Calibrate your pre-flash to bring up your shadow detail, underexpose 1 stop, get a 1 stop push.
I'm only vaguely familiar with pre flash techniques, and I thought this was only done with B&W ... I do have a 4x5 now so I can try learning this pre-flash thing, but I'll have to figure out how to do it first and I think I'll start with just learning the camera first haha.
Thanks though, anything special I need to know for color transparency pre-flash?
~Stone | "...of course, that's just my opinion. I could be wrong."~Dennis Miller