Well, ask and you shall receive.
Gentlemen, thank you, no shortage of food for thought. I've just bought some of the Avid Carp Flying Chod Beads off eBay, the ones Chris suggested. I like the idea of using them as, like Carl Beza, I prefer to use slack lines and these should act to pin down the terminal end of things well.
I'm from the "keep it simple" school of thought so will, in future, initially try the doubled-back bait band idea from Del and/or Mick's suggestion of using a short length of fine braid as an artificial hair. This would offer the opportunity to vary the distance between bait and hook to suit circumstances.
Also like Andy's idea of the bait screw tied with floss to the ring on my pre-tied rigs.
Hey, I'm never too old to learn and what better school than this forum?
Ian