I have finnaly decided it is time to update my walk behind mower. I have an Exmark Viking Hydo 52" now. It has been super reliable beside replacing a few spindles. I was looking at the new turf tracers but was to sure which one to go with. is the HP smaller. I was wondering if I should go with 17hp HP, or the 23hp Turf Tracer. I also liked the manual blade engagment on the HP. Also the blades on my Viking don't spin as nearly as fast as the do on My Dixie. Exmark claims 18,500 fpm, My dixie is 19,000 fpm. I don't think you could tell that little of a difference, so are the newer walk behinds that much better than my older 14hp Viking Hydro 52. I also feel that the drive tires are too small and smash the turf down on my Viking.