There was a problem announced early on that I heard about, but as I was not having any trouble. I just proceeded as I had been. I never did hear if there was a resolution to the issue - or if it was just left in a "proceed with caution" status?

My receivers (4 on gas now) are all Hitec Optima 7's, using an A9 transmitter....

Others using Hitec w/opti's at our field not having issues either.

Not saying there isn't an issue, only that myself and the guys I know first hand are not having any issues....