[macojoe]

If it was me, I would fix that crack with glass, and sand then paint.
fillers are nice and will cover the crack, but when you are in the water breaking waves fillers will do little for streanth and just recrack.

As far as the leak, I had a screw that someone (before I owned the boat) used for a bilge pump and screwed it right threw the hull. well after years it rusted out and i had a 1/8 hole left behind.

It is amazing how much water I had in the boat at the end of the day!! :o

I just threw a hose in the boat and started to fill saw the leak right away!! Fixed it right up and dry as a bone now!!

Here is my thought, you are getting water in now right? So what is it going to hurt to put freash water in there now to find the leak?
What ever was going to get wet has already got wet from the leak and that was salt water.

Grind away the gel coat 3" away from the crack, add 3 layers of glass, each one larger the the last, sand and then top coat with paint or gel coat.

This will fix the crack, make it a strong fix, and will never come back.

Then level the boat throw the hose in and look for more leaks.