Been out fishing for last couple years in my tub. Running great.
Just so blown away by why so so many guys walked away from this forum after depressing Scott Danforth kept puking on newbs and other people asking for help.
No comraderies, no fun, no back and forth.. just boring righteous scott...
Cool, I like your idea with 4lb
Torch has a point. Dang engineers. You could brace it out somehow but at that point you may as well ply and glass then foam.
So to be clear are you foaming all compartments.
Why 6lb foam vs. 4 lb foam
Yes you should take the time to seal with poly once tops are cut down to height.
Never used a router to edge off the square edge but wished I had. I ended up using a sander to round off the edges. Takes awhile like that and inconsistent edging. Go for it.
With epoxy I started with the heat lamp to cure and follow up the next day as I was doing something else. Epoxy eventually cures I'm not so sure about poly?