Shoulders lead the arms

[ralphs007]

Hi
I'm still waiting for my Yellow Book . I have a question about the shoulders leading the arms. I tried this at the range and it worked great. Once my back is facing the target I think of turning my shoulders and upper torso and let the arms follow. I hit the ball sweet long and straight.
Heres my question is there any mention of this in TGM?
I've read that as long as I maintain my spine angle I won't come over the top.
Everytime I try this at the range it works great. I also have good results using Tom Tomasello's advice.
Is this just a fluke that will turn on me or is this a valid swing method in having the shoulders lead the arms in the swing?
Thanks
Ralph