OK... Update of sorts.
Went out for an extended drive today, it really put a smile on my face.... But that's another story.
The pulsing is quite severe at high speeds, less noticable at low speeds. I tried lots off hard braking from high speed in attempt to flatten whatever's causing the pulse. No difference. I also tried a while driving with my left foot on the brake... No difference.
When I got home I took the front wheels off. The near side is fine, the offside is definitely binding.. By rotating the disc, half of it is being grabbed by the pads, the other half revolves freely.
I have some extremely bright handheld lighting and examined the disc at all angles - there's not a mark on it (although I can't see the inside face). I gently rubbed with fine sandpaper - but it hasn't made any difference.
Hmmmm!
