I am replacing my stolen cheetah this week and I brought a turf tiger home tonight to use as a demo tomorrow. After using it for 30 minutes tonight I have already decided the ride is significantly better than the cheetah so I'll probably get a TT2 this week. The demo has the 31 DFI Kawasaki. After reading a lot of people raving about the 37 Vangaurd I was planning on getting that option but when I was talking to my dealer they suggested either the 26.5 efi kohler or the 31 DFI Kawasaki. They said they will get me a vangaurd if I want it and the 37 is really powerful, which is why people like them initially, but they said the kohler and kawasaki will easily be more reliable in the long run. They told me the liquid cooled kawasaki will last the longest outside of a diesel. I don't think I would be happy with the 26.5 hp so I have pretty much ruled the kohler out. Does anyone have any insight into the reliability of the kawasaki vs either the 37 or 35 vangaurds? Really any pros and cons outside of the difference in power would be appreciated.