Im with Disco on this one....Although I have never been in any of Lens classes, I have seen MANY people go trhough them and pass 1st time around!
He has been doing it since the Wright Bros, he also taught it to the QF cadets, many moons ago and wrote half and if not all of the exams.
When he talks, you listen. He doesnt take dicking around too well. And no one is ever good enough to do his course (so he says)
He has got my vote and will be seeing me in one of his classes by years end.
CNM