Q2: Starting from rooted standard ROM but only standard recovery, can I flash Perseus (using Odin) - or must I have CWM or TWRP first??
Q3: Further to Q2 above - if custom kernel CAN be flashed even with standard recovery, is the main purpose of a custom recovery then to be able to do nandroid backup etc. first???
Keep in mind I'm not in this to be able to switch and swap roms and kernels left right and centre - once I have perseus running with my standard rooted 4.1.2 rom thats the way the phone will stay until I no longer have it. I don't want to go to 4.3 because of what I'm hearing about knox - I want FASTER phone with BETTER battery life - not the opposite - and fancy features don't matter - I like my standard rom and the extras pereus should bring me will be more than I'll ever want.