Ok, a little confusion and maybe a little false advertising. Someone may be able to shed some light. Dixie Chopper's slogan "The World's Fastest Lawn Mower." Well Dixie Chopper's fastest mower is the Xtreme Series with at top speed of 15mph. Hustler's Slogan "Fastest of the Fast." Well Hustler's fastest mower, the Super Z, has a top speed of 15mph too. I'd have to get my physics book out, but if those numbers are correct then their slogans are false. Any thoughts?