hi geoff

i sense some anger in your tone? All i ask is a bit more of a clearer explanation of your reasonings. i am in no doubt that your treatments are effective but what are you affecting? Joint stiffness? Muscle tone? or could the pain relief you supply be through more central channels? You will never know which one but to be aware that you could be affecting a lot more than simply 1 Wikipedia reference-linkfacet joint would probably improve your practice no end?
And im sorry if i havent offered anything useful here but these rooms are to stimulate debate not to offer magical answers to all the questions of the physio world! Young physio's need to learn themselves........not just go on the word of a guru like yourself....especially when your reasoning is so poor.