I have a copy of Max_Sea and I use it because of the
weather feature and as a potential back-up to my Navionics/Raymarine main system but it has similar but different inaccuracies.
I am on a
mooring ball off Puerto Moralos
Mexico.
The
Navionics is out by 800 yds and shows me outside the reef when I am 400 yds inside the reef. The Max-Sea shows me to be on landward side of the main square at a bus stop in front of a very pretty church, again the error is close to 800 yds.
The two systems are running off completely different
GPS systems which both show the same exact position.
However, due to the use of the reliable Mark #1 eyeball I know exactly where I am!