It looks like your straddle cable is too long, giving you a large yoke angle. Have a look here Bearded Wonder for more information on setting up cantis
Seems to me after looking through the links that the arms fitted to my bike are wide angle arms which are pretty rubbish at giving a good mechanical advantage think I will be investing in a set of Avid Shorty's or similar then adjusting the cable as per the links and see how things go from there, cheers for the help
Just fitted my new Shorty's, took the bike out for a quick spin, stopping power is so much better then the old brakes fitted to my bike. Cheers Vamop for the recomendation. Will post a pic tomorrow.