Sometimes I read about a swing fault called "collapsing the back side"... associated with a loopy, uppercut swing.
Now, personally, I'm a fan of the 1-plane uppercut swing, call it loopy if you will.
What is "collapsing the back side"? Is it a real flaw? Is it overdiagnosed? Is it a pejorative used by the "swing down to create backspin" crowd to bash the folks who uppercut? Is it just a lack of forward weight transfer?
I mean, songtitle has this huge emphasis on the initial "move" that involves dropping the back shoulder. Can you do this (or, "how do you do this") without the dreaded back side collapse?