It really seems that the coring on my foredeck is 5/8" balsa.

People here have mentioned 3/4", and I reading the threads there were a few comments that the 5/8" was probably compressed 3/4" but I feel like it is 5/8".

I have a 1972 43DC, does anyone have any opinion on that?

Related, in the leaky fly bridge threads, people talk about fiberglassing their bridges on to get rid of the thousand leaky screws thing...

It seems to me you could fiberglass the pulpit on for the same kind of reason.

Has anyone done this?

Any reason not to?