TrufflIE: If you miss the ding early it will start left of the target and continue to fade.
Truf - firstly, a fade goes left to right (for a right-hander), so what you're actually describing is a draw. That said, it does NOT happen on WGT; what you are seeing is the wind affecting the ball. Take Cong #4 for example. You have a left to right wind, you aim in the right rough, you hit early... the ball will still move left to right. The amount it moves depends on the strength of the wind.