Both the ProKat 3660 Sport Cuddy 2007 and the ProKat 3660 Sport Fish 2007 are catamaran designs, both built in fibreglass, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department - ProKat 3660 Sport Cuddy 2007 at 37,0 ft versus ProKat 3660 Sport Fish 2007 at 37,0 ft. Weight tells a clearer story for trailering families: the ProKat 3660 Sport Fish 2007 tips the scales at 14 800 lbs - 1 300 lbs less than the ProKat 3660 Sport Cuddy 2007 at 13 500 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats share a closely matched power ceiling - 650 hp for the ProKat 3660 Sport Cuddy 2007 and 650 hp for the ProKat 3660 Sport Fish 2007. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads - 300 gal and 300 gal - so range won't be a tiebreaker here.
Both boats are rated for 11 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The ProKat 3660 Sport Cuddy 2007 and ProKat 3660 Sport Fish 2007 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.