Thanks Thomas. I appreciate the help. Ok, I'll take it up to 9 mins on a test roll.
I know this is apug and all but when we scan our negatives to share isn't the histogram helpful in this? All the negs I scanned had the pixel population in the middle, far from 'black' 0 and 'white'255. So I had to pull the sliders in quite a bit to 'make' the black and white points. This is from a variety of diiferent negs/scenes. To me that means I'm giving up a lot of latitude.