Both the Checkmate Convincor 2800 OBX 2013 and the Checkmate ZT 350 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 Checkmate ZT 350 2010 measures 34,4 feet overall (2010), giving it roughly 6,5 additional feet of deck space compared to the Checkmate Convincor 2800 OBX 2013 at 27,9 feet (2013). Weight tells a clearer story for trailering families: the Checkmate ZT 350 2010 tips the scales at 8 000 lbs - 3 700 lbs less than the Checkmate Convincor 2800 OBX 2013 at 4 300 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.
For family outings this is probably the sharpest distinction between the two. The Checkmate ZT 350 2010 is rated for 10 passengers, while the Checkmate Convincor 2800 OBX 2013 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Checkmate ZT 350 2010 could be the deciding factor.
Bottom line: Choose the Checkmate ZT 350 2010 if your priority is putting more people on the water - it handles 10 passengers and at 34,4 ft it has the deck room to back that rating up comfortably. The Checkmate Convincor 2800 OBX 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.