Both the Concept 23 SF Open Fish 2008 and the Concept 23 SF Sport 2010 are deep-V 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 - Concept 23 SF Open Fish 2008 at 23,0 ft versus Concept 23 SF Sport 2010 at 23,0 ft. Weight tells a clearer story for trailering families: the Concept 23 SF Sport 2010 tips the scales at 2 300 lbs - 200 lbs less than the Concept 23 SF Open Fish 2008 at 2 100 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 - 240 hp for the Concept 23 SF Open Fish 2008 and 225 hp for the Concept 23 SF Sport 2010. 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 - 65 gal and 65 gal - so range won't be a tiebreaker here.
Both boats are rated for 7 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 Concept 23 SF Open Fish 2008 and Concept 23 SF Sport 2010 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.