Well I have been using my A9 and and 5 receivers almost since they hit the market. I have not had a single blip of any kind. I did do the first update that came out and today I did the most recent updates on the radio, module and all my recievers. Updating is so easy and when your done you have the latest and greatest. By the way I also use opti kill switches and have never had a problem. I do the normal proceedures to keep high voltage away from my recievers though.
I seldom post but just want to state my experience and thank Mike and A.T.for all the work they do to make sure we are up to date on this equipment.