today my phantom is acting up. i went to do the compass calibration in the horizontal and it got the green really fast as it always does..but now i can't get it to calibrate vertically(nose down) it has always worked well..but nose down seems to take a lot longer. besides that when it did calibrate earlier it started to raise r.p.m.'s just string at idle right before i took off. i did the advanced calibration the tried the compass dance again..still no luck nose down. any ideas?