Drills and swing help

[YamiKuriboh]

Had a lesson and my pro identified some issues with my swing. He has given me some drills to try before my next lesson in a couple of weeks but i'm struggling to get anywhere. Does anyone have any other drills to recommend for my faults?

My faults:
1. On the backswing, as I reach the top of the swing position my head and body lift up slightly
2.My shoulders turn quite flat due to (1). My pro would like them to point more towards the ball.
3.The path of my downswing is more towards the ball the my backswing (if that makes sense). This means that when I get to the ball my club is outside the target line and angling in - causing a slice
4. Tend to lose lag on my downswing and thus power as a result of (1-3)

 

[bobmac]

What drills did your pro give you and how long did you practiced them?

 

[YamiKuriboh]

What drills did your pro give you and how long did you practiced them?

Mainly practicing the positions slowly before i hit the ball - turn shoulder without lifting head and keeping lag on the downswing. Also to put something behind the ball and try to not hit it to swing more around the body.