Same reason you pressurise a drag line boom Dave: crack detection.

The Gasser School of Hard Rocks was a raging sucess Paul. Thanks to all in the Hell Team for a huge effort and a great couple of days, though we may have to sacrafice a few grommets to the weather gods next time around... Cheers, Matt

Bob - Definately interested in a NSW school - I'm assuming (hoping) that Steve will work with riders across a range of skill levels. cheers, Matt