This Spring I detailed my Montana for (I think) the fourth time. I too was tired of the ugly "over caulk". I got a whole bunch off this last time by cutting around the trim with a "semi-sharp" pocket knife. Once cut, the over caulk just pulled off. It was amazing!
I wouldn't want to do anything to dissolve the caulk. If water gets through the trim. I'd be afraid that delamination would shortly follow.
Craig
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