On Tuesday, January 10, 2017 at 5:19:31 AM UTC-8, Mike Schumann wrote:

Have you actually flown in an A/C with ADS-B?

No, I personally haven't. Don't see the need.
Right now I'm watching the race at Benalla, VIC.
There are 10 gliders within 1000' of altitude in one thermal near the start line for Open Class.
Mike, please enlighten us as to where the pilots of the 10 ADS-B equipped gliders would be considering ADS-B in this situation, on the scale of fantastic (10) to annoying (0).
Jim