Should I get a Turf Tiger or a Super Z? I have narrowed the feild to these choices, with a 52" deck. The Turf Tiger is 9,000 with tax, has a 23 kawi, or 27 kohler, I like the dealer a little better than the hustler dealer. the super Z has a 25 kawi and is 8,300. Will i miss the 5 mph? the warranty's are about the same, however i do like the fact that Hustler has a lifetime on the front edge of the deck. What to do?