Sorry for the shakiness of the video. I'm just glad that I finally got a chance to post a video of my swing.
From what I can analyze from my own swing is that I tend to get really flat on the backswing and swing under plane (as much as -23 degress difference from my downswing).
I think I need to concentrate the most on that at the moment but any other thoughts like shoulder, arms, tilt, rotation etc?
Also what would be the best drill to sort this out? I am thing of the back to target drill from James Parker? The other two drills I was thinking of is the club to navel drill or just use some tour sticks and really practice on not getting the club so much under plane?