when to trim out for the coaming

On a MC 16.5 hybrid, when is the best time to trim out the coaming. Before flipping the deck for fiberglassing or after the fiberglassing.

Thanks for any advice.  John

Hi John,

I fiberglassed both the underside and top before cutting out for the coaming CH16 hybrid.  My reasoning was that the fiberglass on both sides would help prevent any splintering of the wood.

Paul in Phoenix