[MBCook]

Mine are about 100%, but it does seem to require a decent little thunk. You can't just touch it. I've heard people say they don't like it because it feels uncomfortable in your ear when you hit it hard enough. It doesn't bother me but I'm not going to say it feels good.

I don't think it's capacitive, I think it's based on the little chip's gyro sensor.

[nardi]

Just to be sure—you're both doing a double tap, right? It has to be a double tap. Mine responds just fine unless I hit it weird, which has only happened a couple of times.

[tedmiston]

Yeah, looks like I wasn't thunking it hard enough. I was tapping it with the force of a tap to click trackpad.

[MBCook]

Yes. I am.