The Duckworth 21 2010 is a deep-V design and the Duckworth 723 2011 is a modified-V design, so you're likely deciding between two noticeably 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 - Duckworth 21 2010 at 21,0 ft versus Duckworth 723 2011 at 23,0 ft. Weight tells a clearer story for trailering families: the Duckworth 21 2010 tips the scales at 2 800 lbs - 1 100 lbs more than the Duckworth 723 2011 at 1 700 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.

For family outings this is probably the sharpest distinction between the two. The Duckworth 723 2011 is rated for 7 passengers, while the Duckworth 21 2010 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Duckworth 723 2011 could be the deciding factor.