Hi, first post for former lurker with about 100 flights. P3A with iPad mini 2 (iOS 8.x, previous firmware and go app) hdmi remote add on. I've looked and lurked but have a compass question. When I boot up the bird the status screen while the Imu is coming up to temp always has the Calibrate compass button highlighted, I have been assuming that that was an indication that I needed to do a compass calibration. However after reading some posts some people seem to be getting a different compass indicator. I agree with those that seem to believe that less calibration is better but not sure if maybe I am overdoing it. Is this the indicator that I need to calibrate? My mod rate seems to run just above 15.