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...