I knew you would agree...I just had a young boy deliver my fuel injected Super Z back from my dealer. He is brand new at his job of delivering and asked me if it was possible for a mower to cut grass at the speed my mower would run. I told him to watch, then took the mower out into the back yard and cut four straight passes at full speed. He was watching very intently, when I pulled up to where he was standing he said, "I've never seen anything cut grass that fast, and cannot believe there is not a blade left standing, it is cut perfectly." I asked him if he had ever operated a Super Z in grass and he told me no, all he did was drive them around on the yard and deliver. I stepped off the mower and told him to give it a try, he jumped on and took off, mowed a few passes, then came back and said, "there is no way a person can believe that possible unless experiencing it." I told him that was why I gave him the opportunity, so he would know without doubt a Super Z can cut grass perfectly at top speed. He also made the statement, "I don't know how old this mower is, but I've never operated any new mower we sell that starts and runs as good as this mower." I said, "now you can understand why I say this engine is far superior to the Kawasaki I have sitting in your shop waiting on a new camshaft."