When two boats share the same hull type — in this case both the Luhrs 28 2008 and the Luhrs 31 Open IPS 2011 are deep 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?

Size is the most obvious dividing line here. The Luhrs 31 Open IPS 2011 measures 34,3 feet overall (2011), giving it roughly 3,3 additional feet of deck space compared to the Luhrs 28 2008 at 31,0 feet (2008). Weight tells a clearer story for trailering families: the Luhrs 31 Open IPS 2011 tips the scales at 135 lbs — 134 lbs less than the Luhrs 28 2008 at 1 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 330 hp, the Luhrs 28 2008 has a 70-hp advantage over the Luhrs 31 Open IPS 2011's 260-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 3 gal and 3 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Luhrs 31 Open IPS 2011 is rated for 10 passengers, while the Luhrs 28 2008 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Luhrs 31 Open IPS 2011 could be the deciding factor.