Thank you for the detailed reply, Ron. It's very helpful.

One thing I did notice is the idle bounces around a bit. Not enough to engage the clutch or stall, but it's not as steady as I'm used to. Is this normal? The engine transitions fine, runs well, and I don't want to worry about this if it's not something to be concerned about.

Edit: sorry everyone, I got things mixed up. I have a B6, not a B5. Not sure what I was thinking!