[Mathew]

so in a simultaneous release, not only are 2 and 3 released at the same time, they also 'run out' at the same time?

Yes, The wristcock and wristroll release is simultaneous - they 'run out' or release together....

I remember Yoda saying that Homer Kelley said that the plane of is the heart and soul of the golf stroke because everything must comply with it. Your hand may be turned towards the plane but it is not on the plane - it goes into the plane at an angle - the only way that the golfers flail uncocking alone is going to be on plane is if either the left arm is also flat against the plane which doesn't happen in a golf stroke. Instead that swivel joint has got to work in conjunction with the wrist uncocking.