Doug,

I learned to sail on a Gaff Rig Cat Boat. It was a work Boat and a great
boat for what it did but going downwind was not it good point of sail.
We would broad reach and Gybe rather than sail dead down wind and that
Gaff Rig wasn't made for Gybbing.
She was a center board and a Transom Hung Barn Door Rubber which didn't
help downwind performance but it did let you sail it up on the beach to
sell the lobsters right from the boat.