Golf Swings are like thumb prints, no 2 are a like.. some guys have absolute terrible swings, but it works for them.
I played college football and baseball and every sport has these type drills. Nothing new, but I'm sure there is some golfer that uses this method and scores better than all of us. The only thing that need to be consistent is where the face of the club is at impact, how it gets there is kinda irrelevant... If you strike the ball with a square face pointing at my target you're gonna have a decent to great golf shot..
I'm old, blown out knee, 3 herniated discs, right shoulder is now giving up on me. And I'm 61. I use a limited back swing with a full stop, much like a baseball stance, and do a small pump and swing at the ball. It works for me but I do it for accuracy not for distance since distance is out of my realm now due to physical restrictions. I can hit it if it's a good day straight down the fairway and @ 200 to 230 yards total distance. Not too many par fours are out of reach if I'm hitting the ball like I should. Then again, in this game, that is not a given. I really am looking to shoot a better than bogie round after 18.5 years not playing at all. Gave it up, got injured, kids, you know the drill. Anyway, after 8 months or less of playing again I'm close to doing that. Playing by the rules and shooting better than bogie golf was said by Lee Trevino to be equal to a pro shooting par golf in a tournament, and strictly by the rules. I hope to achieve that this coming year, 2013.