Try leaving a little border and secure with drafting tape.
I considered that, but I wouldn't want the tape to show on the print. I've been trying to print with a border outside the negative. The effect is quite nice, but it's frustrating to have the final print off by a bit every time.
(AACK!!! I just realized this is my 666th post on APUG... )
Tom, on Point Pelee, Canada
Ansel Adams had the Zone System... I'm working on the points system. First I points it here, and then I points it there...