I am looking into adding a Super Z to my business. I am curious to how people feel about the 25 Kaw. vs 28 Kohler EFI? I currently use JD757 with the 25 Kaw. and have had no issues. The 2 local dealers I have talked with both supported the opposite engine. Also is there much difference in the new decks, as one of the dealers has a 60" demo from last year? I am also curious to what promotions will be / or are running through march? I will be ready to purchase in early March and am leaning toward the new 66"deck. Thanks for your help.