Aroth you are mistaken. Cryptofix and FW spoof are not the same thing. It works on Gateway because they automatically patch the anti-piracy protection. It will not work on CFW until you Cryptofix. Cryptofix has nothing to do with eShop vs Retail cart, its an anti-piracy protection.
Every bit of info I have seen about cryptofix other than "lol you need to cryptofix" has been that it refers to the encryption eshop content receives.