The Kingfisher 1925 Flex SPT 2013 is a modified-V design and the Kingfisher 3350 2009 is a deep-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 Kingfisher 3350 2009 measures 33,0 feet overall (2009), giving it roughly 14,0 additional feet of deck space compared to the Kingfisher 1925 Flex SPT 2013 at 19,0 feet (2013). Weight tells a clearer story for trailering families: the Kingfisher 3350 2009 tips the scales at 11 500 lbs - 9 810 lbs less than the Kingfisher 1925 Flex SPT 2013 at 1 690 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 700 hp, the Kingfisher 3350 2009 has a 500-hp advantage over the Kingfisher 1925 Flex SPT 2013's 200-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Kingfisher 3350 2009 carries 180 gallons versus 35 gallons in the Kingfisher 1925 Flex SPT 2013. 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 Kingfisher 3350 2009 is rated for 10 passengers, while the Kingfisher 1925 Flex SPT 2013 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Kingfisher 3350 2009 could be the deciding factor.
Bottom line: Choose the Kingfisher 3350 2009 if your priority is putting more people on the water - it handles 10 passengers and at 33,0 ft it has the deck room to back that rating up comfortably. The Kingfisher 1925 Flex SPT 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.