i'm in the market for a ztr mower for residential use, i think i'm going to buy the ferris is1500z. good prices on both the 44" deck with 19hp kawasaki and the 48" with 21hp kaw. anyone out there know if these decks are offset (i.e. is there any overhang on the left side for trimming close to trees, flowerbeds, etc.)? is there a major difference between the two? (i don't really want to step up to the 52" deck, or i'll need to redo the fence gates).