Both the Concept 23 SF Sport 2008 and the Concept 36 SR T-Top Fish 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?
Size is the most obvious dividing line here. The Concept 36 SR T-Top Fish 2010 measures 36,0 feet overall (2010), giving it roughly 13,0 additional feet of deck space compared to the Concept 23 SF Sport 2008 at 23,0 feet (2008). Weight tells a clearer story for trailering families: the Concept 36 SR T-Top Fish 2010 tips the scales at 5 200 lbs - 3 100 lbs less than the Concept 23 SF Sport 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.
The power gap is worth calling out. Rated to 900 hp, the Concept 36 SR T-Top Fish 2010 has a 660-hp advantage over the Concept 23 SF Sport 2008's 240-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 36 SR T-Top Fish 2010 carries 225 gallons versus 65 gallons in the Concept 23 SF Sport 2008. 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 36 SR T-Top Fish 2010 is rated for 10 passengers, while the Concept 23 SF Sport 2008 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Concept 36 SR T-Top Fish 2010 could be the deciding factor.
Bottom line: Choose the Concept 36 SR T-Top Fish 2010 if your priority is putting more people on the water - it handles 10 passengers and at 36,0 ft it has the deck room to back that rating up comfortably. The Concept 23 SF Sport 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.