hate to bump a 2 week old thread (especially for my first post :bash

, so i apologize in advance.
Are these rated the same way as the other clay-alternatives? in other words, black cars should always stick with fine grade unless you plan on polishing?
Price aside, does this have any advantages over the nanoskin pad? I suppose if you wanted a square block to use by hand, you could just cut the nano pad into two sponge sized pieces and glue them back to back (i doubt many would bother to do that though). The nano pad also has the versatility to be put on a machine to do large flat panels in seconds. I am aware of the material differences, but I'm more concerned about real world differences.
Is this actually proven to mar less or perform better (by direct comparison, not just theory)? I haven't seen any direct comparisons, only complaints about how grabby it feels. i personally don't see any advantages other than being 50% cheaper in price. What do you guys think?
My nanoskin pad melted after a brief affair in direct sunlight and now destroys my paint at the slightest touch, so I'm looking to try a replacement if there's something better. Otherwise i'll just rebuy it and stick with what's tried and true.
Lastly, one suggestion to the guys at opti: instead of having two of the same sides, it would be more useful and innovative to have one sponge with both grades.
-Christopher