It was exactly this piece of film that I saw in 1987. Roger Judd lent it to me in the form of a video.
I was getting super results earlier today on the driving range thinking (as per GTTB, beneath figures 15 & 16) of swinging my trunk and arms as far to the right as I can at the top of the backswing. Not going for a shoulder turn as such !!
Is a much reduced shoulder turn a key aspect of a Blake swing, the thing that distinguishes it from a conventional swing ?? GTTB, page 19 in my copy, towards the end of the introduction by Harry Weaver is interesting in this respect. He talks of Mindys reaction to criticism that only a very supply person could perform a full shoulder turn without turning their hips. He says that Mindy thought that he had discovered a radically different type of shoulder turn. I admit that elsewhere Mindy talks of a full shoulder turn but GTTB, figure 15 certainly does not show this.
To answer your other questions:
I am generally very comfortable with woods albeit I like them to have a bit of loft (eg. 12 degrees for the driver) but I can understand how others can have problems with the longer clubs and attempts at a Blake swing (probably involving coming into impact with an open clubface).
I guess that on the basis of my new theory on limited shoulder turn, Richard Wax differs from Mindy in that he turns his shoulders to a greater extent. Richard also has more crossing of his hands after impact than Mindy (or for that matter even me). I suggest that Richard and I need to get together for another game sometime soon !!