A couple of weeks ago I purchased several more 6 channel Tactic receivers to go along with my 850 radio. No problem with them, they bound properly and have been test flown. I also bought several of the Tactic receiver switch assemblies, Part # TACM 2002. I found that the screws that you are suppose to mount them with are too short. Mine wouldn't even allow me to mount the switch threw a 3/16 " fuselage side. To make matters even worse, I think they are metric. I tried using a 2/56 screw in place of the supplied screws but had to run a tap through the holes first. This problem would be a serious hiccup for a beginner. These screws should be 1/2" or 513 MM long. I'm posting this here because I know that BAX monitiors this thread.