You know...I get it. Flarms are very cool and glider specific.
BUT, transponders are the primary anti-collision tool for all aircraft.
I strongly argue that a transponder should be the first collision avoidance instrument installed in a glider.
Flying in the busy airspace around Reno with transponder on and transponder off and observing/listening to traffic control and the many "heavies" flying in the area made it so clear how powerful they are.
Then there is the problem that many don't want to discuss and that is the blind spots that Flarms have in carbon fiber gliders. There needs to be some serious work on external antennas for carbon fiber gliders.