Bad Compass

[Vince]

if possible maybe also move the motor controller further away.   Your deviation of 0.07 is quite high, I would aim for 0.03 or lower, but as you said it steers a course so maybe you don't care.    What you might find is the compass heading will be inaccurate.  For example, if you turn 90 degrees it may only change by 80 degrees, then turn another 90 and it changes 100.

I followed your advice and I got much better results! Thanks.

This was done from home where I got "poor" last time, I will reinstall everything on the boat tomorrow and hopefully I will get the same.

Vince