Perhaps this is a good summary of the various opinions skeptical of stealth mode:

Collision avoidance is enhanced by situational awareness, of gliders that you are not actually on a collision path towards. This is especially true of "carbon gliders with spotty contact." If you know there are 5 gliders in the gaggle, and where the ones you can't see are, you're less likely to miss one, or no know what to do when an alert goes off, than if they are all blanked from the screen. This does seem like a "real world" difficulty of stealth mode.

(And Dave, sorry for "gratuitous obnoxious comments." You are doing heroic work with Flarm, and hearing only the complaints when things aren't already perfect.)

John Cochrane