Forgot to mention mention my plotter :
Nice device ! Was connected via NMEA 2000 to the motor and displayed plenty of information . Map I used the Garmin BlueChart g2 Vision VEU706L UK, Ireland, France .
Only negativ I found was the fact that with the touch screen in heavy seas with water spray the Garmin changed pages or settings , Hot Lemon confirmed the same
My backup GPS was my beloved GARMIN 276C . It stopped working before the end of the journey cause the tiny pin for power supply was broken .. (((