Well in real life, switching between a big arse bazzooka and a pistol is alot more involved than FH makes it out to be. If you were charged with carrying a bazooka to where ever, chances are thats all you'd be able to easily carry at the time. You wouldn't put the zook in your pocket and pulling out a pistol. At the very least, you'd have to just drop your zook completly to get another weapon out.
You know when you are glitching, no need to defend yourself if you know that you are actually wielding the pistol to protect yourself against infantry, the moment you switch to pistol/k98 to keep your crosshairs small, that is when you are glitching.
Then again, i understand the reason for doing it, fausts and zooks are insanely hard to use now with the new sights that have no indication of accuracy.
As a bazookaman I keep my pistol out not to alert people to the fact I'm a bazookaman (it doesnt' show on my back oddly), because that's the first thing a tanker or screening infantry is going to go for.
FH2 will have BF2's delay animations thankfully (think the M203).
As a tank driver I don't charge into flags and I stick in the middle of my infantry normally. And guess what I live way longer than most tankers.