discussions are always good to get more info out there and get to the root of things,
My main point was the weight must shift down onto the lead foot to allow for proper hip motion or you will just spin your hips out and still not get anywhere. In gregs walking drill the weight goes down, first, same with a baseball swing or baseball throw. In golf first the weight must shift then the hips will follow. That is why you hear some great golfers saying the swing strarts from the ground up. The ground is what gives us the leverage and brace otherwise we would be all over the place. SOme people say bump the hips but if the weight does not go down then the hips will slide past the left leg and you will lunge

In my mind the golf swing is the backswing
transition- meaning shifting of weight
downswing, hips unwind