Both the Skeeter SL 210 2012 and the Skeeter ZX 21 2012 are modified-V designs, both built in composite, 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 - Skeeter SL 210 2012 at 20,2 ft versus Skeeter ZX 21 2012 at 21,0 ft. Weight tells a clearer story for trailering families: the Skeeter ZX 21 2012 tips the scales at 1 790 lbs - 140 lbs less than the Skeeter SL 210 2012 at 1 650 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 Skeeter ZX 21 2012 has a 75-hp advantage over the Skeeter SL 210 2012'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 Skeeter ZX 21 2012 carries 50 gallons versus 40 gallons in the Skeeter SL 210 2012. 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 Skeeter SL 210 2012 is rated for 6 passengers, while the Skeeter ZX 21 2012 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Skeeter SL 210 2012 could be the deciding factor.
Bottom line: Choose the Skeeter SL 210 2012 if your priority is putting more people on the water - it handles 6 passengers and at 20,2 ft it has the deck room to back that rating up comfortably. The Skeeter ZX 21 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.