I have a Grandagon 115 in Copal 1 - everything seems to be in beautiful condition except for a small problem with the shutter and Carol at Flutot's was kind enough to tell me how to fix it myself. "Minor" problem - the front element won't let go of the shutter - it's really locked on there SOLIDLY! I'm not a small person but it really won't budge at all.

Any good tricks to get it off???