[thomastee]

Thanks guys, have re-sealed everything and am ready for another test tomorrow. I can't wait - the prospect of driving the car without the bucking is awesome!
Tony, no convincing was needed - I did try this a few weeks ago with the spare tyre compressor and that didn't work, I guess the volume of air was too low to maintain the right pressure, so I'd been scratching my head since then...
Anyway, will keep you posted!