I flashed your .rgn , cleared non vol
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I cant see big differences, I always get around 5 meters accuracy from my terrace, but I never had problems with accuracy , so my test isnt so relevant even because I havent looked at tracklog like Kanopus suggests, may be I'll test tomorrow ,but better to wait for Neil's test. He can compare 2 devices at a time
No problems for me with logo , it appears normal and stable at start.