Thanks for the reply Nudg.
I managed to get it tracking close to 2.2 all the way up, but to do so I had to put the Lens apertur on 3 and reduce the contrast heavily.
Everything is reading pretty close to correct, but I now have quite a low FtL, reading, around 10.
Looks ok to my eyes, perhaps a little washed out as I had to reduce the colour significantly to compensate for the HD350's incessant need to oversaturate green and blue.
I have cleaned the lenses after reading about the fogging issue on these projectors, and I'm sitting about 4m away and throwing onto a 110" screen.
Cant seem to get the screen any brighter though - maybe I need a new lamp!
One powerball and Ill be buying a Lumagen Radiance!