Hi,
I have the 2012 Lund Sport Angler 1800(18.5 ft). When I compare the Tyee and the Sport Angler the big difference I see is, is the Sport Angler has a much more open space than the Tyee in the stern area. The Tyee has folding seats and a live well back there that takes up room. In my S-A, it's open to the splash well. A good amount of room to move around and land fish.
I also
have the 150HP 4 stroke Merc which will push this boat to 51 MPH...This was just plain scary, but I had to see what she'll do. (I don't do that very often) So if you're worried about pulling a tube, no worries there.
Take a look at the at the Sport Angler, I don't think you'll be disappointed.
Boat Safe,
Egoody