Hello, Converted to 520 'O' ring set up from Conways, It has done several thousand miles now without adjustment.
Use a Scott oiler, this seems to keep the chain clean, as opposed to grease which attracts dirt.
530 'O' ring may foul the gear box casting, 520 'O' ring is no bigger than 530 standard chain.
It looks as though this chain at 2/3000 miles per year will see me out, a great investment. John.