Here is what a cracked shoe looks like.
I used West System Epoxy and cloth to do the repair.
Put some rolled up cardboard under the shoe to keep the drain open.
It is a little difficult working with one hand inside the hull.
Use some rubber gloves and push the epoxy into the craks and all around the pylon.
Wrap with some cloth and wet it out by hand again.
I have done this on a couple of old boats and it works well.
Do both hulls while you're at it.