Quick update on the Mulfab front brake upgrade kit.
I fitted a set of cheap Pagid brake pads (£15.22), which was really easy to do (with the wheels on), and the went out for a 60 mile test drive on a mixture of motorway, urban and country roads, which were mostly dry, but with some damp patches.
The pads gave progressive bite right from the first press of the brake pedal and my overall impression was that the brakes performed much better than I have ever experienced (from new) on my M3W. I'm very happy with them!