I know at times the comms can be delayed by as much as 5 seconds or so.. Was flying on a busy Friday night when I gave a check6 to a fella and those precious few seconds made just about worthless. I know it was delayed because my wingman and I have a ventrillo server for comms which we use apart from the in game radio. His response to my call was a negative one because he was blown up a mere second or less after getting it because of the delay. I responded in kind by waiving the usual surcharge for such calls. I guess my point is the radio is not flawless, and when the server is very busy these calls can be delayed a little. Just saying..