First of all, congratulations, Capn!
Now this is a bit funny to answer for me. As you said, there are different ways to define passing, so I'm sharing three instances.
It's hard to say if you pass just by being gendered correctly. They may realize you're trans but gender you correctly because they are not ->-bleeped-<-s. Nevertheless, a couple of weeks ago I made a thread about my first clear situation. You can look for the thread to read the details, but basically what happened was that, at a clinic, I was asked if I was waiting for the gynecologist.
The second story took place years ago, when I still presented as a guy and identified as intergender. I had to go to a forum where I was active at the time to copy a post I made about it, here it is:
I know that probably some of you think that ESP is nonsense, but I wanted to tell you about something that just happened to me.
As I don´t have internet at home, I came to a cybercafe to get into the forum. By the way the place is built, the owner can´t see the pc I´m sitting at, and apparently the program he uses to know wich pc is in use isn´t working fine. When I was writing my introduction, after being in the forum for about half an hour, he told a guy to use THIS pc. The guy noticed me, and said "I can´t, they´re using it, there´s a girl there". I´m not en femme, I´m wearing a leather jacket, a wool cap, and haven´t shaved in 2 days. From the angle he looked at me, he should have also noticed my stong chin. It was certainly not a visual thing. I think I was projecting so much feminine energy, that he didn´t even actually see my male appearance.
What do you think?
The third story is... weirder.... It was shortly after I went full time. I met this guy, and conversation went to the reasons why I was staying where I was. My trans status was one of them, so I mentioned it. He then said " so you were a girl, and now you're becoming a guy, right? "
....
I still don't know if I should have taken it as a compliment or not. After a few seconds of staring and blinking I said "actually, the other way around".
Had I said yes, would be have said "Wow, you look great! Totally like any other dude" or "Yeah, sorry, I can really tell you were born a girl..."