I ordered this new foam from knifekits http://www.knifekits.com/vcom/product_info.php?cPath=41_57&products_id=4292
All I know is that it stinks like hell and I am leaving it outside for a few days lol. It feels really dense though, it should be good!
I got some from knife kits. http://www.knifekits.com/vcom/product_info.php?products_id=2343