Compass interference from motors

Hi All.
Can anyone confirm if the latest version of ArduCopter 4.0.5 is good to use the compass motor compensation feature.

I need to compensate for mag interference from 2 front motors when lifting a large load


Yes, it is. But only for quadcopters, if you have more than 4 motors it won`t work

Thx. Checked and we only have 1 to 3 % interference from motors. Problem is solved.

Did motor mag compensation solve the problem or did you do something physical to the copter to fix it?

Routing the wire from the GPS carefully had a good impact.

There was a loop to shorten the length.

After straightening out the wire problem seems solved.