With all due respect. If you are alone are you wanting to stare at a plotter? Or would it be better to have some one competent on the bow looking for coral
heads. You need to go slow, plan carefully and keep a good DR or have a reliable plotter... which are not all that expensive these days.
Look UP and not at those damn screens. My plotter is below decks and I hardly look at it. I use a small hand held in the cockpit
and use autopilot
so I am not behind the helm
where many put those huge instrument pods with plotters and so forth.
Sailing is becoming a video game