They use these outfits down under for distance casting, and regularly cast 100 meters.
http://www.surfcasters.iinet.net.au/DrycastingMain.html
It sounded like just the ticket for reaching those fish that are always just out of reach, so a buddy picked up an outfit. We both tried casting it but didn't do any better than we could with a spin rod. Guess it takes a knack and practice. Guess I'm saying don't buy one and go out expecting to cast 100 meters right away.