The Pearstone pads are quite good. Honestly though I think the standard V6 pads keep my ears cooler. Not saying you're wrong 
I used the Pearstone Velour pads for 5 hours while playing Bioshock 2 one night and I had to remove them because my ears were burning up.
Somehow the M30 pads are the best for keeping your ears cool. It seems to have more "lines" on the pad and this seems to help for whatever reason.
I use the Sony MDR-V6 pads on my DJ100 and they're circumaural for this headphone since they stretch out a bit.
I wish all velour pads could be as good as those on the Beyer Dynamic headphones!