Same for me, starting with a "BIG" deadzone, after one day i would stop flying with the trackir, but some members told me, you have to go further with it, afther a while everything will be come better, so i did. So the result is; i can't anymore flying without trackir, and i don't use any deadzone at all, the only thing i changed is the Z aks, a bit moving forward or backward, with deadzone is better to look fast to my instruments..
Grtz...Ross....