I have been playing indoors with my Solix.(too cold to go out!) There were threads in the recent past with mentions about having GLONAS satellite option turned on or off. I was looking at the GPS screen with the satellites showing. If I toggle between on/off I get a 30 to 50% lower HDOP with GLONASS on! I was under the impression this was not any big deal as little commotion as I have noticed. It seems to be a major deal unless I am seeing an anomaly here and now in North Central Arkansas. Has anyone else observed this? Plus is there any reason NOT to use the extra satellites from Russia? Bob