I was the one who asked that question many months ago and Team Bennington (and my dealer) said it is okay to pull a tube with the ski tow pylon. They said if it were to bend or break it would be covered under warranty. The original question and answers should be dated back in Feb/Mar sometime.
I stand corrected....the following was Team Bennington's answer to my question:
Posted 15 February 2011 - 04:41 PM
Hello skeptic. We try not to jump into the Club Bennington banter, simply monitor it. However, we will try to address your questions for the good of all!
Bennington offers ski tow bars and ski pylons, depending on the stern configuration. Both tubing and skiing are fine with our tow bars and pylons, and as you can see from our website, multiple tubes are fine, too. HOWEVER, you should never haul an empty tube. Inertia, an empty tube and high horsepower can cause a ski tow to bend. If the tube is big and flat, it may get dug below the water, which will act as a sea anchor while the boat is at speed, usually in a turn. You'll certainly feel the boat decelerate. If you pull off the throttle quickly, the pylon or bar will be fine. If your pylon or bar becomes bent so it is unusable, Bennington typically replaces them free of charge. (Always depends on the circumstances!)
DO NOT pull parasails or other boats with a ski tow bar or pylon!
You can see the original posts with the subject name..."Don't Be Shy" by Team Bennington.
Thanks