Yes, finally managed to find a tutorial last night after a few hours of surfing, it sounded like you would install firmware 5.55 OF and then have to use a Pandora battery later if you wanted to go back to CFW (wasn't sure if you would have to do this every single time to go back and forth but Im guessing probably)
13.It should now say you have 5.55OFW
14.To go back to 5.00m33-4 you just pop in your pandora battery while holding the L trigger and select the first option(Install 5.00m33)
15.Check your system settings and it should say you have 5.00m33-4
Thanks again