That Black Magic chinnile covered sponge, I've got it too, and I'm not fond of it. I threw away my old one a few weeks ago (felt it had been compromised) and that one's internals have flattened out. I also don't have good throughts about how soft the fibers on the outside are. If you read teh package, there is nothing about what the chinnile is actually made of.
It gets replaced tomorrow. My old one held up through 3 times through the washer, and maybe 50+ car washings. This one is dead at four.
I wish I knew what brand the previous one was. I think I got it at Target.
After getting the lame sponge and not liking their QD, I'm off Black Magic for a while.