I have a problem. I just installed the Powerbox Royal SRS on my large SM Viper. When I turn on the Powerbox I see some movements in some of the surfaces such as elevators and rudders. Some of the movements are sometime small and other times quite large almost to the point of linkage binding. This only happen for a fraction of a second, then all surfaces to neutral position and everything is working OK. The behavior is completely random. I am using as a radio a DX 18 and this had never happened with the previous Powerbox Royal Spektrum I used to have on this plane, neither with all my other Spektrum receivers.
I bind the radio to the Powerbox on a precise position (neutral all my surfaces) and I have those positions maps on hold. I tried FS too instead of Hold and using the FS learns position memory and the behavior is the same when I turn on the system.
Other than that everything is working perfect after a few seconds has pass. I am worry to try to setup my wings as this behavior might damage the flaps on my Viper.
I do believe I have the latest v4 version installed on my Powerbox Royal SRS.
Let me know your thoughts, I have another Powerbox Royal SRS to be install on my A10 but I need to solve this issue ASAP.