Thanks for the tip. All the Quattro manual says is “Tuck the sports lock in the concha” but it felt if I bent one too far, it was going to break. It took my wife 6 days to say, “What’s that sticking out from your ear?!” so I haven’t been too concerned about it. For a piece of plastic, they are dang expensive - must be military-grade, like the $500 hammers and toilet seats… I will go looking for YouTube videos, etc., on how to do a proper job tucking them in without running up a bill breaking the little buggers.
UPDATE Looking up where the antitragus is, I think my basic problem, if you look at the first picture of my ear from the front (see above), is that I essentially have NO antitragus. I think something like 10% of folks have my “condition.” So, no place to tuck up a sports lock. And actually, this deficit showed up long ago in my life, <<< sob, sob, sob >>>, as because I have no antitragus to speak of, I could never keep earbuds in very well except those like Samsung’s AKG’s, which flare out where the cord attaches and provide friction against the lower ear lobe even though there is no antitragus to tuck them in.
Here’s a decent but not close-up enough YouTube video from an audi demonstrating how to properly insert a RIC HA, sports lock and all (for folks with antitragi or antitraguses!).
Back to noisy restaurants, now that our HA’s are all locked and loaded!