I have some basic safety questions if someone can help.

So I followed the instructions on updating everything with the installed software and it seemed to go flawlessly. The only thing I couldn't find was the F6 option in the explorer to format the V2 unit.
1. Is that still a required step?
2. I had a banks 6 gun with pda on my truck before, do I need to worry about other files being installed on my truck by the banks unit or am I safe to say that I still have a stock pcm after I took it off?
3. I read the instructions about not powering the laptop and the v2 from the truck at the same time, but do you need the laptop to data log? I've been told that I should log, log, log before I do anything. I'd just like to safely get to that step.

Thanks for any help, It's my daily driver and I can't afford to have her go down because of something I'm messing with.
Colin