I am going to order a New 06 XS and can't make up my mind on the 29 Kawi DFI or the 31 Briggs. The kawi is $1100.00 more but I am wondering if I could make that up in fuel savings. Does anyone have the gallons per hour numbers for either or both engines? I am also wondering about the maintenance issues on the liquid cooled engine versus the air cooled Briggs. I haven't seen any negative posts about either engine but I am leaning toward the Kawi.