When two boats share the same hull type — in this case both the Berkshire Pontoons 170 CL LSR 2012 and the Berkshire Pontoons 263SLX 2010 are pontoon designs with aluminum 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 Berkshire Pontoons 263SLX 2010 measures 28,0 feet overall (2010), giving it roughly 10,7 additional feet of deck space compared to the Berkshire Pontoons 170 CL LSR 2012 at 17,3 feet (2012). Weight tells a clearer story for trailering families: the Berkshire Pontoons 170 CL LSR 2012 tips the scales at 151 lbs — 119 lbs more than the Berkshire Pontoons 263SLX 2010 at 32 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 150 hp, the Berkshire Pontoons 263SLX 2010 has a 90-hp advantage over the Berkshire Pontoons 170 CL LSR 2012's 60-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Berkshire Pontoons 263SLX 2010 is rated for 14 passengers, while the Berkshire Pontoons 170 CL LSR 2012 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Berkshire Pontoons 263SLX 2010 could be the deciding factor.

Both are 2-tube and 2-tube pontoon designs respectively. Tube diameter and gauge affect stability and load capacity — more so than most buyers realize when comparing on paper.