ironass
Extreme Android User
Right, time is mine Done CWM back up, done Titanium back up, done EFS Back up, all relevant folders copied to PC. I think a complete purge is needed if not necessary before flashing so I'm copying all my phones media (both internal and external SD) and doing a full clean up. I'm going to flash onto a pristine scrubbed clean SGSII. Of course I'll still be here til midnight copying back and restoring but I'll know any issues are not due to any ICS related debris left on my phone. A belt and braces approach I know, but if I have any issues I know I can report back in this thread and they're JB issues and nothing else.
Bravo dynomot!
A man after my own heart. After flashing XXLSJ over NEAT LPY, for testing purposes, I have spent today doing a, "clean", install as you have described and for the very reasons you mention.