TORNADOS DO NOT AGE WELL AT ALL!!
The surface of the PVC tubes wears very quickly with any kind of use and leaves you with the string / pattern showing through very quickly, particularly in a commercial application.
I've not had much use with them in a leisure environment - that I readily accept, but I think in the leisure market, if a boat is covered up and generally well cared for I don't think there's much in it!
Grafham Sailing Club have four 5.4m seariders that are 20+ years old, still with original tubes that are in immaculate condition. A credit to the club and Avon.
In comparison they have a 6m Tornado that does not look in as good a condition at all!