Well, I managed to grab a short test flight, on the shore (away from any possible sources of wifi). Weather wasn't good, a chilly 5C, fairly medium gusts, but at least not raining!
Battery was below optimal temperature, current firmware, current IOS DJI Go.
Flight was mostly good. Only took it to about 300m out because of the wind, but got multiple compass errors (I did calibrate before takeoff) leading to dropping GPS into ATTI. That's a little scary when you're at the limit of clear visible range and the wind is high!
No "Strong Interference" warnings this time.
The compass errors seemed to happen when the bird was facing me.
Heres my healthydrones:
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