So, I purchased two phantom 4's. I wanted to have a backup just in case something went wrong. Anyway, I noticed a couple defects on the first one but I let it go. For example, a little nick on transmitter or on bottom of drone. Again, these were very minor so I let it go. Well, when I purchased my second one I noticed a lot of differences. First, the seal on the white box was two round circles of clear tape one the second one and one rectangular piece of tape on first. Next, the second one didn't have protective stickers on the obstacle avoidance cameras or the dji logo on top and the 1st one did. I know these are minor things, but it concerns me. If these stickers were left off does that mean the sensors could have been damaged? Should I take it back and exchange it? Also, I forgot to mention that this is my second, second phantom 4. I returned my first second one for a tilted gimbal yaw arm. Has anyone else seen these inconsistencies or minor flaws? Is it worth returning for something as small as missing protective stickers? Any advice would be great!!!