Port light reseal
This spring will be the task of pulling all the hatches and port lights and resealing them and potting and rebedding all the hardware on the cabin top with Butyl tape.
The port lights are Aitkins and Hoyle 5x12 opening lights, the cabin top is cored and I fully expect to find exposed core when I pull the lights.
So is it better to pot them out with epoxy to seal the core or leave it unsealed in case a leaks develop in the future and being open will make it easier to spot.
In talking around the yard I get the impression that most favour the latter.
However, it seems to me that if all the penetrations have been potted then there should be no worries about future water intrusion to the core and hence no need to leave a place where it can escape (or enter).