When two boats share the same hull type — in this case both the Stamas 290 Express Outboard 2006 and the Stamas 310 Tarpon Inboard 2007 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 290 Express Outboard 2006 at 31,0 ft versus Stamas 310 Tarpon Inboard 2007 at 32,0 ft. Weight tells a clearer story for trailering families: the Stamas 290 Express Outboard 2006 tips the scales at 655 lbs — 558 lbs more than the Stamas 310 Tarpon Inboard 2007 at 97 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.

Both boats share a closely matched power ceiling — 500 hp for the Stamas 290 Express Outboard 2006 and 500 hp for the Stamas 310 Tarpon Inboard 2007. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Stamas 310 Tarpon Inboard 2007 carries 225 gallons versus 25 gallons in the Stamas 290 Express Outboard 2006. 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.