The cause and effect I can add beside our beloved Matthew.. I know this cause I suffer from these before ..
The cause Hip turns too fast or too far ahead of the arms in the downswing and the hand is playing catchup. or too much axis tilt that goes too much underplane and the hands wants to square it. ( I think this could be the problem.. since its push slice is the evil twin)
Or bent plane line after impact too much to the left which may be caused by not enough Axis tilt or round housing, or trying to swing too much left . that the flat left wrist is forced to do a throwaway. ( if the tendency is a pull, or deep divots on short irons or hit fats most likely the problem is here,)
of course there should be other causes.. but my knowledge is limited
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