Even with that date you might still beat me...

I took out the core from the 2 hatches that covered the gas tank and redid it with Divinicell and glassed it back in. What a difference in the weight from the old water soaked plywood to how it is now, there must be a 75lb difference. I had already taken out the plywood from the floor and yesterday I cut to form the divinicell to replace it and get it glassed back in.. How I wish the I had a large enough shed/garage like some here have since you have to plan around the weather here...Today it's raining hard and looks like rain till Tuesday. No pics yet, but some to follow.

I have a question on the layup schedule for the floor.
I was planning on reusing the skins that I took off but they are in poor condition so I would like to replace it all with new mat, fair it and then paint/non skid

Suggestions are needed

I have a pictur of a section of floor in my 25. It is 5/16" glass on top. I don't know the schedule. But I suspect there is a lot of woven roving in there and mat on top? That sounds like 8 or so layers of 1708 - which is my favorite to work with. Ideally you would get 0,90 -45 and +45 layers alternating to get a quasi isotropic laminate, but if you are at least not all 0-90, and have some mat, that's a good start

Not sure if this helps or not;
Original deck schedule for early ‘70s 23’ Sceptre; top to bottom (from Feb ’73 Boating, Boat Test #207)
Gelcoat
1 layer 3/4 oz mat
2 layers of 1 ½ oz mat
1 layer 22 oz mat
1 layer of 1 ½ oz mat
3/8” end grain balsa
1 layer of 1 ½ oz mat
1 layer of 22 oz roving

Sounds like yours might be similar but with plywood instead of balsa?

Thanks guys it gives me an idea on what to do

But now how do I get it to stop raining?

Soap up your car but don't rinse it off