Haha thanks for the welcome
A very weird fetish indeed
Just trying to see what the hull liner to hull joint looks like, or keel matrix
The surveyor on my new boat said mine had been repaired likely from a keel impact as the gelcoat colour doesn’t match but it looks pretty close to the same as everyone else’s from the pics I’ve seen other than in a few spots
I think it’s been there for a long time, hasn’t cracked, passed the wooden hammer tap test and is arguably stronger than before but it’s nice to know the full story of what happened which I don’t have