I have started to keep a count of the number of times we come full circle back to the first press sheet out, right now we are about 75%, change this, try this, etc... OK lets go back to number 1 (an hour and 1000 sheets of paper later, AHHHHH)
After some months of accommodating Ms Erable we found the simple solution was to schedule her job either during afternoon rush hour traffic or 3am, what was a long-winded sage where only her optical nerve was capable of discerning the most colour critical data turned into a breeze, start up adjust colour to match the proof...done!
the moral of this story; nightshift is your friend