Yes, the subject sounds weird, but I can't describe it. Put an endoscopic camera into the hull drain to check the inside of my '73 for standing water. Ran into a black matrial that looks a bit "squishy" (real technical terms, I know) right behind the cockpit and was curious if this is standard or something someone placed in here after a repair. Just not sure what it is. I have a picture I can post here tomorrow.