Well Benk,I prefer Hogan's definition of plane,Hardy has his as does every coach I am sure,you take just take your own view and make it work for you.Johnny Miller,Tom Wieskopf,take a look at their swings and then take a look and Immelman,to say they are they same is taking the analysis way over the top for me,as I said,is unneccessary death by detail.IF Hardy says Immleman is a 2ps,thats fine by me,he has taught many players and I have to respect such an experienced coach.But I still vehemently disagree
It seems that the definition of plane has got lost by coaches desparate to find their own identity in a crowded market,(don't blame them at all,big money to be earned)in as much as the definition seems to be drawn down to moves during the swing.You've said this several time,this bit is one plane,the next bit is 2 etc etc etc.But plane is plane! The moves don't make a difference,you either swing under or on the pane of glass as in Hogans book,or you don't.
The biggest selling golf instruction book in history has a simple view of plane,Hogan describes in clearly and succintly,and he doesn't like the plane with any other position.Hardy might,but thats just over-complication a simple concept to me.
1p hands below the plane,2p hands above,thats it.