Hell, you can see "small" 16 foot boats pulling a waterskier in this video :

http://www.spitfiresailing.org.uk/photos.asp

(direct link : http://www.spitfiresailing.org.uk/spituba05_256.wmv )

go to time 4: 45 (4 min 45 sec into the video)

Those big cats ain't got nothing on us in this regard.

Wouter