I just got a PSP from a friend who got himself a Vita. This is my first PSP so there seems to be a lot to learn. The thing is a PSP 1000 and was on OFW 6.60 so I put PRO-B10 on it and did the CIPL install. It's playing ISO's of the memory card fine and SNES9x seems to work but the GBA emulator GBSP won't load and since I have only a 2gb memory stick, I was looking into irShell to run ISOs through the netsh wireless from my pc, which I understand doesn't work with the 6.x firmwares. I'm considering a downgrade to 5.00 M33-6 or 5.50GEN-D3 but I've heard about others and I have no idea what's current and best in the 5.x range. I've got a step by step guide on using Hellcats Recovery Flasher to get my 6.60 down to 5.00 M33-6. I've also heard a few things here and there about irShell not being all that great at playing games over the lan anyway, or that irShell can brick a PSP. Anyone got any experience with irShell and can provide some advice on which CFW to use?