[oem4me]

It is just my humble opinion that once you have broken through the factory applied paint and primer/sealer, then you have opened the door for all kinds of adhesion and/or reaction issues. The edge between new and old will be the most trouble as far as potential lifting or wrinkling goes and also presents a bit of work to sand out or feather properly. It's way easier in my mind to leave the killer factory stuff intact and just prep the surface to accept a new coat of color. I think this would be especially true in an enclosed area where years of sun and weather have not thinned the paint film much. I could be flat wrong on this, but to me just the idea of "encapsulating" a problem gives me the willies.