I am thinking of, for the first time, buying a machine new. I have hooked into a big commercial account that will require an upgrade from my fleet of walk behinds. Any suggestions? I need to decide between a Wright Stander 52, Exmark LazerZ HP 52, Scag Wildcat 52", or a Hustler Z XR7 54". Any advantages jumbing curves with any of them. How are the Triton, Velocity Plus etc. decks?