When two boats share the same hull type — in this case both the Stamas 310 Express Outboard 2009 and the Stamas Predator 308 2010 are modified vee designs with fiberglass construction — 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 — Stamas 310 Express Outboard 2009 at 32,0 ft versus Stamas Predator 308 2010 at 30,7 ft. Weight tells a clearer story for trailering families: the Stamas Predator 308 2010 tips the scales at 825 lbs — 727 lbs less than the Stamas 310 Express Outboard 2009 at 98 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 500 hp, the Stamas 310 Express Outboard 2009 has a 200-hp advantage over the Stamas Predator 308 2010's 300-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Stamas Predator 308 2010 carries 275 gallons versus 3 gallons in the Stamas 310 Express Outboard 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 9 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.