Just returned from a trip, unpacked my PV2+ (all batteries full), ran through the Assistant Software, calibrated the compass....ready to fly on a perfect morning. Powered up the Phantom...but power was no where near full. One side (couldn't tell if one, or two, rotors on that side) had less power than the other side. So, flight scrubbed. Any suggestions on what I should do to see why power loss has occurred, and why it seems to be uneven? Perhaps something came loose on the inside during shipping? Thanks, pilots!