The safe approach for exposure is to leave yourself some room; if you are making a negative of a scene with say 8 stops of brightness range, why not put the exposure in the middle, so you get a stop or so of insurance on each end? Making a succesful print is like going through a series of doors, each one smaller. If the errors are bigger than the doors, you eventually get stopped before you reach your goal.
As for me, my printmaking hasn't quite caught up with my negatives. But when it does, I'll have the negatives.
That is essentially what I do.
My prints have a ways to go too.
Mark Barendt, Ignacio, CO
"We do not see things the way they are. We see things the way we are." Ana´s Nin