I know this sounds like a stupid question and most of you want to immediately post "DUH!"
I am pretty sure that I will lose root if I do this, but I wanted confirmation.

But since I don't know the exact mechanics behind FastBoot and how Voodoo OTA Rootkeeper hides it's protected copy, I thought I would ask.

I have one issue with wifi since the JB upgrade that doesn't seem to affect anyone else so I want to reinstall the FW to see if that resolves it.
I have already factory reset 4 times and cold booted numerous times on top of that.

Thanks for any insight