Hey Greg,
I was, at least thinking, about using the 798 (or whatever) to display my map when running so I wouldn't have to divert my attention to the side as well as use it for the XM Weather functions such as being able to leave it showing the weather when not actively running. Plus get rid of a non-functional flasher so whatever unit will be flush mounted/In-dash mounted....or maybe put a radio in there instead...still thinking about this option.
Ideally, I'd like to have all function at all the Units, i.e XM Weather, WeatherSense
As for your question regarding Rudy Project lenses color...it really depends on what you're wanting ie, sight fishing or general UV blocking and wear
I am a firm believer in the ImpactX PhotoPolarized Brown. The Polar 3fx Grey Laser or Brown Laser lenses are also wonderful lenses. The Polar 3fx Racing Red are a good contrast lens with a 22% light transmission. I really like the ImpactX PhotoPolarized Brown because it adjusts to the different light conditions I will facing when out fishing. Plus, I never know when I am gonna set the hook at have to dodge an incoming tungsten weight or something else. If you have any other question feel free to ask.
P.S. Also sent you a private message.