[BerntR]

Per 4-D-0 the release motions refers to the release of Accumulators #2 (the left wrist uncocking) and #3 (the roll where the club closes and eventually catches up with the hands).

In a swinging stroke the release is sequential. Uncocking first and then the roll. The uncocking is a vertical movement (remember that left wrist should be flat and vertical at all times) and right hand pp#3 pressure must therefore be vertical to support the uncocking first. But the roll which appears thereafter is horizontal and therefore pp#3 orientation must change. It will not be horizontal, but down and out at impact. This pp#3 rotation will basically happen by itself as long as the right hand doesn't go outside it's mandate, which is basically providing structural support that enables the pivot to drive the club through.

In a hitting stroke you put your right hand in the driving seat. You can't do a vertical uncocking first and then start the rolling - and get away with it. You want PP #3 to do the same thing throughout the downstroke. A steady on-plane thrust. And that can only happen with a pp#3 that is on-plane at all times.

In other words: No pp#3 rotation for hitters but pp#3 rotation for swingers. The difference is very easy felt at the top as soon as there is a hint of loading action. And disaster waits if you don't get the loading correct.

What I meant by "rotation (or not) of pp#3 doesn't just happen" was that different alignments are required for hitting and swinging. It is described in 7-3. But I don't understand that chapter properly. So if someone would care to explain it would be nice.