Anyone know the likely spot I should look to seal up? I'm thinking to do the hatches.
No leaks from the lake, just the sky!

WIndshield is a very vulnerable area

My windshield leaks at the base. I'm seriously considering pulling the headliner back beneath the windshield and coating that area with Flex Shield "as seen on TV" .

Also...don't forget the Bow Rail stanchions...another potential leak.

The windshield is probably the location. Is it loose at all? I had to remove mine on my 311 and I put it back down using 4200. Got rid of all the rattles and leak went away. It is easy to take off. Just pull the rubber at the bottom of the windshield and then back out all the screws. Some will probably be bent. Afternoon fix then let it dry for a day or 2.