where in some planes the the seat is practically inside you head, so that you more or less cannot look behind you.
Corsairs of course, are a major victim of this problem.. other planes suffer aswell though not quit as horribly.
im still fighting the good fight and have resorted to turning the tracker off, looking back with a HAT, and then turning it back on..
this is stupid and annoying, but so is getting show down by a con that a non TIR user would be able to see.