ORIGINAL: ColinWright
Got any figures on actual time to deploy? An 88 is a big gun -- you're not swinging this thing into action in a few seconds. What's more, its rate of fire and traverse are going to make it close to useless against low-altitude targets.
Seems like we do. Seconds. And a rate of fire of 20 rounds per minute - firing shrapnel bursts instead of bullets. And more than twice the ranges of light AA. Bad news for bombers at any altitude.
How often did 88's defend mobile columns under attack? On the other hand, there was quite a bit of self-propelled light AA -- 2 cm guns on trucks, to be exact. These latter were obviously intended to provide AA protection while on the move.
There was quite a bit of towed light AA as well. By your line of reasoning, they should have been kept in the rear as well. They weren't.
Clearly, getting intercepted while moving is bad news for the movers. That's why forces that face enemy air supremacy usually have to move at night. Flak protection is required for more than just moving. As I said, when defending or attacking, the Flak would be already deployed unlimbered.