Heh, actually, you weren't one of the specific examples I mentioned above and I can't honestly think of any times your pronunciation has thrown me out of a story. It might have happened but I can't remember any off the top of my head. I think too, if you had said something that seemed off to me, I would be more likely to give you a free pass. Since we have very different accents (I'm Canadian) I would have assumed that any possible mispronunciations were due to accent differences.

Unless it was something really obvious like mispronouncing a character's name or something that is really part of canon (like, I remember listening to this one SGA fic by a British podficer (I can't remember who), where they pronounced lieutenant the non-American way with the F sound in the middle. Even though that's a legit way to say that word, it's not what John is, he's in the American military).

Anyway, that's a very tl;dr way of saying, no, you weren't one of the examples I gave above, and I'm probably not the best person to ask if you've been making mistakes that pull people out, since any mistakes you make aren't all that likely to pull me out. :)