I've only used it a little, but already I have noticed that the tires on my new Lazer HP 48" 21 kawi slip more than the tires on my old Lazer HP. They look to have a more rounded shoulder. Good for turf damage when turning sharp, but they seem pretty slippery. Also a question. My Lazer didn't have a Kawasaki engine manual with the other manuals. Do I need to give my dealer a call?