Hey Cap'n Vic, Many thanks for trying to help. I have a few pics that are Jpeg files and not too big, but the forum just doesn't like them, says they're the wrong format. Can't figure out why!

Anyway, if you key up that second pic I posted (which I'll try to repost here) on the interior pic on the right hand side of the stanchion baseplate you can see a small white sheet of fiberglass that was pulled off a darker, grey speckled sheet of rather thick material (about 1/8" thick), and you can see that dark speckled sheet of material bending downwards to the plastic base plate, where it may be cracked (unseen). My question is, is that dark speckled grey layer the flange from the hull-deck joint ? I'm planning on using a dremel tool to dissect the various layers away, but I can't help but wonder if you more experienced members have encountered this before. Many thanks for any thoughts!

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