No problem peter123, I'll get the wife to throw a little zigzag stitch on it from her machine. The first one went on quite easily, the little band of elastic on the edge must have been a little bit bigger on it.
It does provide a more airy sound to the DBV3's and keeps the baffles away from your ears a bit. This does appear to lessen the bass a bit but I think it is just a volume change, if you push the driver's closer it all comes back like the 840 pads.
The foam in the Velours is quite dense so that is why I don't think the sound changes too much after compression.
I put the 840's back on to get the tear sewn, I think the link I posted earlier to that excellent repair job would work perfect with these pads. It will make them much easier to get on and off without the possibility of tearing.
Now to convince the wife I need her to run a piece of inner tube through her machine... Wish me luck with that one!