So I have 9 flights under my belt. 

First one resulted in a light crash, flip on landing, that resulted in a broken mast.  Replaced the mast and everything was perfect for flights 2 and 3.

Flights 4, 5 and 6 I found that I could not "arm" the system with my transmitter.  The "joystick" image on my base station showed that when I had the throttle all the way down, the "system" thought I was at 50% throttle.  So somehow, in just sitting on my work bench, the Y6 had lost the radio calibration info.  I did arm with the base station and the flights worked well.  Recalibrated and tested out fine back at home.

Flights 7,8 and 9 all would start fine, but at some point in each flight, usually when the battery was approaching 20% it would lose contact with the radio and land.  Flashing yellow light and "lost contact with radio" or "searching for radio" was displayed on my base station.  Hooked up a fresh battery and the same thing would happen on the next flight. 

Did some reading on the forum and saw a lot of discussion about SD card.  Went to pull my card, just to look at it, and it will not pop out.  (Yes I know how to properly install and remove and SD card).  Even tried to coax it out with a micro screw driver.

Any suggestions or advice?  Right now I am doing just Park testing and flying, but I am not far from trying an auto mission or shooting some nice whitewater action.