Darryl, I don't know how you can manage to keep on top of all this ADS-B stuff without your head exploding but thank you for doing so! Whenever I try to make sense of it all it makes me want to give up flying and take up Tiddlywinks or something.

Out of curiosity, what performance parameters in the PowerFLARM system make it a "degraded" GPS source unsuitable for ADS-B out? I assume the system must be accurate enough for airborne traffic awareness and collision warnings as it has proven satisfactory in FLARM to FLARM situations.