I have a pair of Sony MDR V6 and the pads are still the ones that came with them so the coating is all flaked off and I thought hmm they would probably fit so I tried it and although not a precise fit it does fit.Very easy to get on since its slightly bigger and they don't fall off they stay on perfectly.
A huge improvement in SQ I was pretty shocked by the improvement with the Shure pads.
You also get far superior pads and better comfort.
Sound improvements includes the harshness disappearing from the stuff I tried them on.Mud and hollowness cleaned up and drums/cymbals coming to life not being so drowned like they were.
And smoother overall sound.
So anyone have a pair of MDR V6 the Shure pads is a great mod