As no one with more information than me has replied, I'll offer my two pennies worth having gone down in later 2006. I seem to remember a couple of short pitches (5 metres each?), and a final 22 metre pitch in Pinnacle Chamber. It's a short cave, but interesting, and the last pitch is very impressive. It was rigged at the time, and I was by myself, so my memory is a bit hazy.