is it that important? I routinely back in, and yes, I stop, and reverse into my spot. If the people to my left and right have parked in their stall, I'm close to 100% on ONE attempt.
Now, you think I just wasted 20-30 seconds of your time (I highly doubt it), but when we all come out of the game, I'm going to get in, and pull out right into the flow of departing vehicles, not block 8-12 cars while I attempt to blindly back as some jerk is crowding up to me.