I have a 798at helm, and a 788 with s terrova 101 US2 at the bow. I want to up grade but I am planing on getting new boat new year. I will go with a 1100 on helm, 900 at bow. Lookin at a g3 boat or express. I like my 788 at the helm and it works just great. I do have some interference. I would like to have dual card slots up front. Its a pain swapping out cards.