Over the years we have discussed this matter and I admit it is a bit difficult to explain, otherwise we would have understood Blake from the start. I'll try to make a new dive into the seemingly enigma, and I'll deal with CDs comment at the same time.
1. Take the club with the blade facing target. Look down the shaft. The round circle of the club shaft will serve as a clock face!
2. The lead (left) hand is placed with the thumb at three o'clock, a bit drawn up (Blake says a quarter from the top e g 12 o'clock. He was adamant about the need for this thumb grip in order to get 'feel'. It is true that he talks about a two to three knuckle grip in GTB and a four knuckle grip in his first book but let's leave that for now!)
3. The rear (right) grips the shaft with the middle fingers going under the shaft (via six o'clock), landing somewhere at 12 o'clock and thereby rounding the rear wrist. That is what consider a clockwise screwing motion (can we still use this word without contamination risk!?). The thumb will be placed between 11 and 12 o'clock.
4. The rear hand's middle fingers thus placed will then form a pressure on the shaft that could be considered as a counter clockwise or unscrewing motion as the wrist flexes back. My point is that you must first screw on before you unscrew.
5. The purpose of this screwing procedure is to create the pressure between the two hands needed to make the work as one unit, the lead arm/hand going counter clockwise in the beginning of the backswing, helped by the grip by the rear hand's wrist flexing, while the middle fingers support the closing of the club head.
I realise that you are still confused, but at a higher level! But this is my take on Blake!
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