Since I originally posted this question I have changed my hooks to Nash Fang X's and I seem to have increased my runs and the number of fish I hook, whilst I have reduced the number of lost fish .
As for the hair everyone's advice (nearly) gave me food for thought so now I tie em at the waterside and play around with the hairlength and the angle and point it leaves the hook.
I have also switched back to supple rather tha coated braid which on the runs waters that I am fishing in preparation for the season ahead seems to confuse them; i think that the combi link has become the default rig and is the one that most people instantly use-I know I was starting to be guilty of this.
I also changed from a bolt rig to a running rig but with a big bead fixed on the tubing about 2 feet from the swivel; to give the fish a jolt once they were running confidently, which also seems to have improved the quality of my runs.
As you can see I have been making 1 change at a time until I am getting the desired result, which I think goes to prove that we should adjust then test, then consider, then adjust again until we have what we want.
Advice is useful, but experimentation (Ibelieve) and time on the bvank can never be replaced.
Thanks everyone, as I said at the start it just proves that 'There is no one answer'