Humm... upgraded the firmware, definitely faster acquiring satellite signals. Immediately found nine satellites in the back yard with a limited view of the sky. (Normally wouldn't find anything so would have to fly manually). Took off and flew over the house for a clear view of the sky. Picked up another 4 sats and stayed locked in at 13.
Worth mentioning however. .. at one point while hovering stationary with 13sats it inexplicably did go into RTH. Not sure how or why but I immediately hit "fly" and it stopped it's decent and acted normal after that. Maybe totally unrelated but I'd keep an eye on it ....for a while at least.