If you are sure the Eaglei is the best one for you then go with it. I was only giving you alternative options to consider, not saying that any of Garmin's FM partners are better than Eaglei, only indicating that imo Garmin is a superior producer of such specialised navigators and FMI cables generally. Not knowing your precise individual requirements [i'm not asking for that info either ] i am not able or willing to state which FM is the 'best'.