Hard to say, Ed. It depends on how well your individual boat was built.
I've always trailered my gunter-rigged 1967 Potter, but the bow eye is
still solid after 31 years of winching the boat onto the tilt-up trailer.
(I don't submerge the trailer.)
When I first got my Potter, I had occasion to be pulled off a shoal by a
harbor patrol boat. They insisted that I attach their tow line to the mast
instead of a cleat. As a backup, perhaps you could tie your mooring line to
the mast as well as the bow eye. Chafing of the rope at the bow eye might
be a more likely failure than pulling out of the bow eye.
Does it get as rough further down the Bay? (I've never sailed Tomales.)
Maybe a slip at Inverness would be a better choice if not too expensive.
Or you could do what I've done: install a lateen rig, which greatly
simplifies the rigging and derigging.
What is the hull/sail number of your Potter?
Harry Gordon
P14 #234, Manatee
Mountain View, CA