Fin Keel
As the owner of a Capri 22 with the fin keel, I would not want to try towing it awfully far. My assumption is that a Catalina 25 with a fin keel is going to be at least as unwieldy out of the water as a Capri 22. Sitting on its trailer, its high enough to need an 10' extension ladder to get up to the deck. I don't know the precise height for clearance on the road for overpasses, etc., but I would want to make sure of it before towing anywhere. My biggest concern with towing however would be in matching the boat and trailer to the tow vehicle. I normally tow a 3000 lb camper behind my Jeep Cherokee, and don't worry at all about the camper overpowering the jeep and effecting control. I would worry about whether the center of gravity, etc. of the boat, would cause potential problems. Somewhere I read about the recommended wheelbase for towing larger trailers, and you probably would need a good sized truck to do it. Something with at least a 110" wheelbase.I might still tow it with the Jeep, but very carefully over a short distance. The other consideration is getting the boat in and out of the water. With our 22' we need a boat lift to put it in and take it out. We have yet to run across any ramp that is steep enough to launch the boat, and the trailer would not extend far enough into the water.That being said, in the water I take the fin keel anytime over the swing keel.