Gareth, I do know that the DC22 didn't really do well here either and I feel very lucky to have it. I think the noise level of the machine might have been enough to scare people away. The motor has a pitch to it that's identical to the Air Blade hand dryer.
I'm thinking along the same lines as you about a different turbine. The standard issue turbine is more than adequate, but I feel that the machine could work just as well with one of the others. You know more about Dyson than I do. Which model of turbine should I be looking for? The DC52, or Cinetic as it is called here, is too new in our country and the website doesn't show spares available for it yet. Do you suppose the DC39 turbine head would work? I don't care about not having the "Trigger" switch control and it looks identical to the DC52 turbine.