Some of this has been discussed before, but I would be interested in advice. Am commissioning a new h44DS, and opted for the Raymarine C80 chartplotter at the helm rather than the E80 or similar, as the E was much more expensive, and I figured what I would really prefer is to interface a laptop at the nav station. Would rather have a laptop for lots of reasons, and the difference between the C and E Raymarine would buy a lot of laptop. Now I am beginning to believe that interfacing the C and a laptop is not that simple. Not much help from raymarine website. Anyone make this work, or should I really just install the E with a second unit below? For plotting, i could connect my trusty Garmin portable to a laptop, but I thought I would like to get the instrument info at the nav station also. Thoughts? Also- the boat seems to come with a fixed 3 blade prop- worth replacing?