By soft, I was referring to the really clear type used for aquarium airlines. It feels sorta sticky to the touch. I think it is Vinyl.

The Icemaker type was what I recommended (based purely on intuition), which is somewhat flexible, but also somewhat rigid too.

> I have followed the discussion on ruddercables and tubings with
> interest. Since 1991 I have been rigging and selling fiberglass and
> polyethylene sea-kayaks. I have allways used soft plastic tube for
> tubing. It`s a kind of tube used in dishwashers (large kind used in
> hotels, eg.) The tube takes a wide range of temperatures and offers
> low friction. The tube are also low cost. As ruddercable I use 1,7mm
> kevlar line. It`s static, cheap and strong. Regards, Eirik