""It seems that you pull the club head behind the line of your feet in take away"" - Yes my pro is trying to get me to take it back straight but when I do I slice.

""You should be more bent over from the knees at address position"" - Not sure what you mean by this - shouldnt you bend from the waist?

""your right leg straightens in the backswing. Try keeping the flex in your right leg during the backswing."" - Yes I should do this