When two boats share the same hull type — in this case both the South Bay 520CR 2010 and the South Bay 522SL TT 2011 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?

On paper these two are close siblings in the size department — South Bay 520CR 2010 at 21,6 ft versus South Bay 522SL TT 2011 at 24,0 ft. At 173 lbs and 261 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 225 hp, the South Bay 522SL TT 2011 has a 110-hp advantage over the South Bay 520CR 2010's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 31 gal and 31 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The South Bay 522SL TT 2011 is rated for 14 passengers, while the South Bay 520CR 2010 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the South Bay 522SL TT 2011 could be the deciding factor.

One place where both boats are genuinely identical is tube construction: both run 2 aluminum tubes at 25" diameter. That shared spec means stability and buoyancy characteristics are closely matched — the ride difference you'll feel between them comes primarily from deck length, weight distribution, and motor choice.