I know youve seen the clumping yourself mate, was just putting it out there. Will be interesting how your buddy goes. Be sure to pass on his thoughts! MT, I had the 28efi on my first SZ 60". I agree its a great little engine but terribly under powered for the machine, even with the 60". 66" just wouldnt work around here. While the 31 was ok on the XR7, again it was just enough when getting onto slopes and long stuff. Bare minimum for that machine IMO. This new SZ needs the 37/35 if you ever do slopes or heavy cutting. The 37 Kawi does like a drink thats for sure and I hate having to go fill it up several times a week but having that much grunt is very handy for me. The tanks are a huge pita. The cap chord gets knotted around the fuel line and is a mind fcuk to untangle as its a pretty long reach past the "cup" to get to the knot. 30min it took me last time. I have to do it again now as I can barely get the cap off enough to fill. I might have to just cut the chord, but I dont want to! I also agree, and have said before Im sure that people just need to demo before purchase, a good demo etc. The clumping problems might not happen for everyone in there locations. The machine itself is a tank, the stuff it can do would make many of you freak but. Its a very HD machine and I believe in a league of its own. If they can put a dfi/efi on it and get the discharge sorted, (and I believe they are going to take it more seriously now) the machines a dead set winner. And Hustler, if your reading this..... Turbo Baffle without making the chute smaller!