bit slow on this :o ...i managed to order a 600 cable by mistake, Had to return and order one for the thou. camparing the new Yamaha cable with the patern old one there is not much difference, a very good copy. but, the lower half of the yam cable has a plastic sleeve on it, takes the inner cable diameter from 2mm too 2.5 mm. fitted this afternoon, 15mm job. and the clutch action is now smoother and lighter. test ride tomorrow will let you know how it goes...Also fitted a 4 degree advancer so should be a lot smoother pulling away now, looking forward to the test ride. 
One, is never going to be enough.....