I don't understand how this could be arena-related, but I can add that within the last two days, both my TopGun joysticks have developed problems - and I spend 90% of my time in the CT.
My problem is related to the auto pilot mode - I won't hold, and snaps off by itself. I've tried 2 different sticks, calibrating them, etc. I had this problem a couple of times in WBs, and they had a 'center' joystick function, which solved the problem immediately. I can't find that function in AH documentation though.