I'm looking to upgrade my PSP 2K (Running 5.50-Prot4) to a newer CFW release. From what I have seen, the two "major" CFWs right now are Pro and ME. Can anyone help explain the major differences between the two? By the looks of it, PRO seems to be the better choice, but I think I read on QJ that it isn't all that stable (may have been older release). Im going to get my GF a PSP 2K in the near future (want one that is fully hackable, so not going for 3K or PSPGo), so even if I don't update mine I will need to know what to use when I hack her's. Appreciate any help you guys can give. Been out of the PSP scene for the past few years so Im a bit lost when it comes to the new CFWs.