Did my 275 Cup-S after 6 years & 20k was not to bad only from 12-3 o'clock area was flattened & shiny. Did with very dilute Surf clothes washing liquid and microfiber. Then with microfibre with clean water. 15 mins it took. Like new. Wish I did sooner. Sorry no pics.
I find that a dot of fairy liquid and warm water. Go to town with the soaked microfivre then go over again with a microfibre soaked in just warm water. Takes 5 mins and job done
