I was looking through some archives of Moe Photos and I found this gem.
The picture you see here is Lee Trevino. It was sent to me by a friend a few years ago. Moe would often tell me how much he liked Trevino’s swing. You can see in this picture the way he moves into a flexed lead knee. Notice also how his lead foot is turned out so the knee can flex toward the toes of the foot.
I also like the way his trail leg is flexing into the the downing, showing how the hips are rotating into impact.
Remember how Moe’s head would position itself over his trial knee. You can see exactly how this is happening in this photo of Lee approaching the hitting area in the downswing.
Notice how his hips are rotating open as his shoulders are lagging behind. The tilt of his body is increasing into the downswing showing a separation of the upper body from the lower body rotation.