I ordered the wrong pads by mistake, posted them back at 3pm Monday, and had them swapped for the correct ones, no fuss, posted through my door at 11am Wednesday. Fantastic turn-around, very pleased. ( Note; New Deore 535's take S1 pads).
The first lot of 4 pads i bought, Didn't last to well. Fell off the back plates. Sent them back, 100% good to SUPERSTARS WORD. Sent me a brandnew set of 4 sintered pads. Sure are SUPERSTARS in my book. Its such a god dam expensive hobbie, So ever little helps. Again many thanks. G