I have a brand new 2000 Thor with more added features than a fully-equipped Mercedes Benz. The guys at Thor made it with level floors front and rear(awesome and cozy for your clients), drop-down front bench, etc., etc., etc. The rear level floor allows me to stand up and run the electric motor with ease. I owned a Willie before and the Thor rows similar if not better(at times). My Willie tracked great pulling plugs and the Thor does too. Just balance your weight in the boat accordingly to compensate for any ass-end planing. The Thor doesn't seem to track as nice in slower water, however, it wants to slide around a little. Then again slow water is usually accompanied with an eddy or too so maybe its just me. Medium to medium-fast water it handles better than the Willie in my opinion. I don't plug the slow stuff as much anyway so more often than not it works in my favor. I bought the Thor because I thought the demo that I tried rowed nice and Parker hit a 20+er steelie within the first half hour of fishing. Pulling plugs through a fast tailout with a broken surface; in a small section of the Skykomis that requires some hard rowing and a boat that will track straight enough to keep your plugs just off that plug-eating tree. Parker knows what I mean and he's gonna learn to row by next spring.
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Why settle for one when you can have hundreds?