The Steiger Craft 21 DV Block Island 2009 is a deep-V design and the Steiger Craft 25 Modified V 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.
Size is the most obvious dividing line here. The Steiger Craft 25 Modified V 2011 measures 24,7 feet overall (2011), giving it roughly 3,7 additional feet of deck space compared to the Steiger Craft 21 DV Block Island 2009 at 21,0 feet (2009). Weight tells a clearer story for trailering families: the Steiger Craft 25 Modified V 2011 tips the scales at 5 200 lbs - 700 lbs less than the Steiger Craft 21 DV Block Island 2009 at 4 500 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 300 hp, the Steiger Craft 25 Modified V 2011 has a 75-hp advantage over the Steiger Craft 21 DV Block Island 2009's 225-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 124 gal and 125 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Steiger Craft 25 Modified V 2011 is rated for 7 passengers, while the Steiger Craft 21 DV Block Island 2009 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Steiger Craft 25 Modified V 2011 could be the deciding factor.
Bottom line: Choose the Steiger Craft 25 Modified V 2011 if your priority is putting more people on the water - it handles 7 passengers and at 24,7 ft it has the deck room to back that rating up comfortably. The Steiger Craft 21 DV Block Island 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.