Done.

I bought some 20lb Live Fibre TX (100% Dyneema...whatever that is) this afternoon, zero stretch and according to the salesman the same stuff as spider wire. 20lb is the same as 9.1 kg. I can't see a 1/2A model reaching half that weight, even in a gale so it sounds fine to me.

Mr Clean, lines already fitted to one of those age old Cox handles with the peg in the middle . Tying two knots was tiresome enough for me. Later I might make another set of handle and lines with snaps on the line ends so I can swap them between models.

Luke.