Matt, I use all the SRS power boxes with all the SBUS RXs in many different models never a problem. The one thing I don't use are the A123 packs. I flew the Cockpit SRS in my F4 with the first version software and Im still flying it now. We are never going to know what happened to Erik's plane , but it was a maiden so it could have been anyone of the new components. And don't be afraid of the gyros, you can turn them off!! I am installing a royal in a twin at this very moment and its royal # 4 for me and the previous 3 have been flawless.

Don