Mora I mean no offense, truly, but if you are having regular success w/ the maneuver you suggested, you are fortunate to run into inexperienced and/or unskilled sticks.
I'm not as experienced as many in here, having flown for just over a year, but if you somehow manage to last long enough to pull that move on me, I'll have your tail chewed off before you can get a round off at me from your turret. Now, I don't fly a cannon plane and have only a year's experience so I bet there are more than a few sticks who would make you pay for a "move" like that.
WW is a clever pilot and he really used the a20 well but look at the moves his opponents try: almost textbook on how NOT to escape an aggressively flown A20. I'm sure WW executed w/ precision as is his wont, but other than a friendly vulchee, one would have trouble finding more cooperative targets.