Lots of passion on this topic, Lot's more knowledge out there than I have.
Does anyone have a reasonable guess as to the percentage of U.S. gliders that have flarm? transponders? or both? For that matter, Radio's, oxygen, etc?

Is there anyone willing to admit the adoption of flarm in the U.S. 'could' be considered a failure, (at least compared to Europe), and in the future represent a waste of money by the pilots that bought in? and, maybe some negative emotion towards those who didn't?

Will the 2020 change in
the transponder/ADSB situation prove to be the system to install?

On a lighter note this reminds me a lot of some discussions I remember about VHS vs BETA tape formats. I'll remind everyone that the technically superior format lost out to the cheaper and inferior technology.

Not meaning to step on toes, Just wondering?

Scott W.