Matching a deep vee Larson LX 185 S I/O 2013 against a modified vee Larson SEi 180 Ski Fish O/B 2007 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

On paper these two are close siblings in the size department — Larson LX 185 S I/O 2013 at 18,7 ft versus Larson SEi 180 Ski Fish O/B 2007 at 17,0 ft. Weight tells a clearer story for trailering families: the Larson LX 185 S I/O 2013 tips the scales at 204 lbs — 187 lbs more than the Larson SEi 180 Ski Fish O/B 2007 at 17 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 — 135 hp for the Larson LX 185 S I/O 2013 and 150 hp for the Larson SEi 180 Ski Fish O/B 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 Larson SEi 180 Ski Fish O/B 2007 carries 23 gallons versus 19 gallons in the Larson LX 185 S I/O 2013. 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 Larson LX 185 S I/O 2013 is rated for 7 passengers, while the Larson SEi 180 Ski Fish O/B 2007 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson LX 185 S I/O 2013 could be the deciding factor.