Water entry
My water came in from the hull and deck joint, but only when heeling stressed the joint.
I had a small hole in the area behind the stern berth where the water could be seen dripping in. Once home I had my son hold the air nozzle from the air-compressor to the hole and gently apply air. On the outside you could see water coming out of an invisible crack about 2 feet long.
The adhesive material didn't stick and I had to remove and replace about 4 feet of material. Once I started removing it (by hand not a power tool) it was easy to tell if the adhesive was still sticking and removed all that wasn't.
No problems since!