I'm a little rusty in my understanding of how the stock OS works in regards to other ROMs I install. I'm pretty sure that once I've upgraded to JB in stock, I can't install ICS ROMs anymore... however, can I install Jellybean ROMs designed for ICS but are JB? I'm interested in this ROM but I'm not sure if it will work with the new JB kernel that I have because I upgraded. I would love to understand this, could somebody please enlighten me? Thanks!!