I've just done this using the Goodridge flexi-hoses supplied by Caterham for the purpose, and would like to confirm that I've got it right...
Each flexi-hose has a male fitting at one end (with a very long thread) and a female fitting at the other. The threaded part of the female end can be turned without the whole hose turning. Also in each bag (one bag per hose, so 2 bags, 1 left, 1 right) is a male-to-male connector and a 'free' nut which fits onto any of the male ends. One bag also had a copper washer in it...
I've put the 'free' nut on the long-threaded male end of the hose and screwed this end of the hose into the T-piece on the DD tube. When tight in the T-piece I've done up the nut to lock the whole assembly together.
I've screwed the male-to-male connector into the caliper, and then attached the female end of the hose to the male-to-male connector.
I haven't found a use for the lone copper washer...
Is this right?
Mike