The generic cable from Venhill uses the welded-on nipple fitting in the standard throttle roller fitting. The cable then travels through the recycled Yamaha bolt-in ferule before travelling through the Venhill outer until it reaches the threaded cable adjuster which is mounted in a fabricated stand-off tower using a nice grommet from CBS to seal it off while allowing the thick-end of the adjuster to travel into the tower. The cable exits the adjuster then travels 90 degrees around a special machined acrylic rolling-shaft before joining to the pedal by means of a Venhill U-shaped fitting, bolt-on nipple-end and a rose-joint.
It needs some fine-adjustment and a brace for the tower but works a treat. It will sound silly but as this is all of my own design (with the goal always being a smooth, long-travel pedal) I am rather pleased.
Now to try to find a very short turn-buckle or similar to act as the brace for the tower...