After watching afew more videos on http://www.englishbilliards.org/ and deciding to change my practice to a more formal method. I selected playing drag on my longs losers to try and increase my control of the balls.
I played one hour on this one shot from two set positions. Went quite well was getting the drag on nicely towards the end. I must purchase one of the spotted balls to watch I'm getting the hit right.
I can see this type of shot will be quite valuable especially on long shots on a strange table.