Crashed my ol' P3P to smithereens, so I thought- why not replace it with the P4. No, I haven't crashed this one yet, but each time I land -3 times now - I get this IMU warning. So much for dual IMU's? Is anyone else having this problem? Btw, I wait a minute or so, it goes away and I have successfully flown with no IMU warnings, just getting them on landings (no auto landings).