I did a re-fit last year and went with the B&G (T7 , Zeus)..do yourself a favor... Google it.. the software is impressive,it's called "sail steer".. and somehow they figured out how to make it run on a fraction of the power as the other brands..not only is the software for their chartplotter better but last year and this year as well, they are running a special.. if you buy a T7 or better, they will give you a T41 (4x4 display ) for free.. which means you can have your charts up on the T7 and your wind ,speed and depth up on the T41..