We used to do that water skiing and hook three ropes together for about 200'. The amount of stretch available in the rope is incredible so you kind of have to watch what you're doing.
haha i dont ski. my uncle does though. i call him a planker all the time. i just did it for kick. you cut straight through the wake like nothing was there. but cutting out of the wake could get me about 3 feet up. i was really suprised