So after 17 days my Europart order arrived.
1 Brembo disc, they are only sold in pairs so what a dimwit that packed, needless to say I returned it, before I did, I weighed the new disc at 11.4kg. I notice as per fan, that the inside of the disc is coated which will look after it in all weathers I suspect. Also the inner drilled hole is now dimpled as opposed to drilled again most likely an improvement.
I measured my discs as a comparison which were well within manufactures spec at 50mm, so I suspect they will last a long long time, how ever when closely inspecting them their was significant hot spots and uneven surface, minor cracking around the drilled holes. You can feel vibration through the pedal and under hard braking. The pads I put in at approx 5k mileage were Project Mu 800hc, think they are ok, but pads over 50% worn, lasted better than standards.
I am now waiting on EBC's floating disc and blue pads, will see what weight benefit and update you.