I don't recall specifically which models were referred to when I read about the auto switching issue... however I have a Sidesho on the way, 1 auto and 1 manual, and now I have a Revolver kit coming too.
So neither of those are 510 or 401. So does that mean they're not as sensitive as the others are?
In any case, you answered my question regarding keeping them in the PCC. I don't think I'll ever be out and about without the PCC or at least a case to keep them protected, so it shouldn't be a problem then.
Oh and Scottbee that's a good point about the PCC and not having the attys attached, I hadn't thought of that. If I'm using a regular case though, the atty will still be attached... but it should be protected from noise n such I'm assuming.