I have a new Inspire 1 V.2 that had it's first flight this weekend. I noticed that from an idle if I rev the motors I hear squeaking like a bad bearing. I flew out of the yard about 100 ft. and came back in and could notice it when I came in for the landing. I can reproduce it on the ground by revving the motors a little. Can't seem to isolate which motor it is. Anyone have this type of issue with theirs?