I'm getting ready to start a repower of my 54' Donzi (details covered in another thread). I'm going with CAT C-18's and ZF665-A gears. I've been quoted the ZF Cruise Command or Smart Command controls. Does anyone have experience with either of these? Any issues? I'm leaaning toward the Smart Command as we do aa lot of slow speed trolling in differing conditions and the Smart Command gives more flexibility here. I'm also wondering if I should retain my existing emergency manual back-up controls or if they will even work with electronic controlled engines/gears? I forgot to ask CAT/ZF about this but plan to early next week.