The Lund 1852MT Jon 2011 is a flat-bottom design and the Lund 1950 Tyee 2012 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 - Lund 1852MT Jon 2011 at 18,0 ft versus Lund 1950 Tyee 2012 at 19,7 ft. Weight tells a clearer story for trailering families: the Lund 1950 Tyee 2012 tips the scales at 1 735 lbs - 1 260 lbs less than the Lund 1852MT Jon 2011 at 475 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 225 hp, the Lund 1950 Tyee 2012 has a 160-hp advantage over the Lund 1852MT Jon 2011's 65-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
Both boats are rated for 5 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: Performance buyers should lean toward the Lund 1950 Tyee 2012 and its 225-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Lund 1852MT Jon 2011 with its 65-hp rating is the more economical daily driver.