Matching a modified vee Shallow Sport 20 ft. Shallow Sport 2006 against a tunnel Shallow Sport 21 ft. Modified V 2012 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.
Size is the most obvious dividing line here. The Shallow Sport 21 ft. Modified V 2012 measures 21,0 feet overall (2012), giving it roughly 19,0 additional feet of deck space compared to the Shallow Sport 20 ft. Shallow Sport 2006 at 2,0 feet (2006). At 85 lbs and 1 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.
Both boats share a closely matched power ceiling — 200 hp for the Shallow Sport 20 ft. Shallow Sport 2006 and 200 hp for the Shallow Sport 21 ft. Modified V 2012. 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 Shallow Sport 21 ft. Modified V 2012 carries 65 gallons versus 42 gallons in the Shallow Sport 20 ft. Shallow Sport 2006. 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 Shallow Sport 21 ft. Modified V 2012 is rated for 7 passengers, while the Shallow Sport 20 ft. Shallow Sport 2006 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Shallow Sport 21 ft. Modified V 2012 could be the deciding factor.
Bottom line: Choose the Shallow Sport 21 ft. Modified V 2012 if your priority is putting more people on the water — it handles 7 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Shallow Sport 20 ft. Shallow Sport 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.