Hi all...I have had a P2V for a few months and have just purchased a P2Z and took it out for my first flight today. The flight went well except the P2Z seemed some what unstable compared to the P2V. I calibrated the compass and flew with no GoPro Wi-Fi. I was flying on a high school football field and took off from grass. I had GPS flashing green and S1 was in the GPS mode. I have iOSD mini FPV and I was receiving telemetry data. There was a breeze but nothing compared to what I have flown the P2V in. I was able to hold stable altitude but horizontal x-y axis was eratic, going as much as 20 feet from side to side at times. I purchased this rig from Atlanta Hobby who did a test flight before I picked it up. I have not gone into the Phantom Assistant software yet and I have not upgraded any firmware. Any suggestions as to what is going on? This is an awesome forum and all of you who contribute are a tremendous resource for this "hobby". Thanks to all!