I have a humminbird helix 9 MDI G3N on the front of my boat and was thinking about getting a MEGA 360. My first question is would the 9" screen be big enough to see detail or would I need a bigger unit? I know bigger is always better but it also cost a lot more and I would need to add that to the decision of if it would be worth it to get the mega 360 in the first place. My second question is If I was to get a helix g2n 12" or 10" (or solix G1) and connect it to the helix 9" MDI g3n, would the mega 360 image have to be shown on both units or could i see the 360 image on the g2n and see maps, 2D or di on the g3n? I am just trying to figure a way of getting more for my buck. Thanks for any replies or suggestions.