No he's not Bernie....best thing you can do is weather the glass. Make sure you give the body a good wash to remove the mold release agents.
It is a good idea to let the body "settle" before painting. What will happen is the glass will take up a shape that may or may not include some hollow (or high) spots. These of course will be filled by your painter prior to putting the shiny stuff on it.
The other aspect is the likelyhood of bubbles under the gel-coat. weathering from the elements will help these erupt prior to painting.
Few years back a mate purchased an RMC and painted the body within a month of getting it...after 6 months it looked like an anorexic Victorian hooker with a bad case of acne ..not a good look
Leastwise..not a good look by Banana benders standards.