I am going to be purchasing a new scag Tiger Cat 61" in the next few months to use in the coming 2010 season and I want to know which engine would be the best choice. The options are a 26hp kawasaki liquid cooled or a 27hp kohler command air cooled. The prices for the mowers are almost the same so this is not an issue. Everbody always says that Kawasaki is better than kohler and I know that liquid cooled is supposed to last longer. My concerns are that I would like to have as much power as possible and the kohler has one more pony and I'm not sure if I can trust my guys to consistantly clean out the filter on the liquid cooled engine. If anybody has thoughts on this it would be greatly appreciated.