Yes, TT is consistent and adament about the right shoulder lowering in getting the right elbow down in front of the right hip in the new DVDs.
Nothing inconsistent that I noted with the Australian series. But I have only watched about 25% of the content. He also said the shoulder move is not the only way to do it, but it is a move that can be consciously triggered. He seemed to have liked teaching the swinging motion this way, but he kept repeating "There are other ways to do it!"
I hope this tides you over till you can judge for yourself!
UPP in cold Ohio
The bottom line is the right shoulder has to move on plane in the downswing...whether you're using the arms to start the club down or if you use a shoulder turn throw trigger.