If your thinking of going to a Wheelie School I Highly recomend this one.
http://www.jimmyfireblade.co.uk/bandit_wheelie_school.htm
Ok it’s a bit of a drive (just under 3hours) but well worth it. He teaches Clutch up. You get a bike (600 Bandit) all to yourself. The bikes are fitted with a cut out device that stops you from flipping & get raised throughout the day as you progress. You don’t get to rely on it, as once you get some height you start to master the tecnic and keep just under where it cuts out.
He’s a real nice guy and excellent tutor. And I will definatly be going back there to further my riding skills.
All in all it is a fun day and I came away with what I wanted from it.
Highly Recomend