Both the Concept 23 SF T-Top Fish 2009 and the Concept 27 PR Sport 2008 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 T-Top Fish 2009 at 23,0 ft versus Concept 27 PR Sport 2008 at 26,0 ft. Weight tells a clearer story for trailering families: the Concept 27 PR Sport 2008 tips the scales at 2 600 lbs - 300 lbs less than the Concept 23 SF T-Top Fish 2009 at 2 300 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.
The power gap is worth calling out. Rated to 300 hp, the Concept 27 PR Sport 2008 has a 75-hp advantage over the Concept 23 SF T-Top Fish 2009's 225-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Concept 27 PR Sport 2008 carries 110 gallons versus 65 gallons in the Concept 23 SF T-Top Fish 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Concept 27 PR Sport 2008 is rated for 8 passengers, while the Concept 23 SF T-Top Fish 2009 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Concept 27 PR Sport 2008 could be the deciding factor.
Bottom line: Choose the Concept 27 PR Sport 2008 if your priority is putting more people on the water - it handles 8 passengers and at 26,0 ft it has the deck room to back that rating up comfortably. The Concept 23 SF T-Top Fish 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.