I'd recently popped a thread regarding a phenomenon that was baffling me: my ball would sometimes sail straight the first 2/3-rds, and then start veering over to the right. I just couldn't get to grips with it: "... but the ball was heading straight for the green - why did it start pulling right so late?"

I found this (shortened) article in the July '06 (SA) edition of GD; by Shelby Futch: "Many of your (golf) problems can be fixed by paying attention to what your ball does in the air. With the driver, try to watch the entire ball flight - the first 75% of the flight will tell you a lot about your swing path. The final 25% will tell you what your clubface was doing on impact."

And the penny drops.