Flashing back to "Stock Rom" Question

[a_medina626]

O.K. Here's the deal.

I know it is highly recommended to flash back to a "Stock" ROM before flashing a custom ROM, but do we necessarily have to wait for the full customization to be complete before we flash again? To be more specific, can I flash to a Stock ROM, take the battery out (at the point when it says "Tap Screen to ....." just before you align the screen), re-insert the battery, and put in Bootloader Mode? Or do I have to wait for all customizations to end and for the phone to reboot?

I was just wondering....cause I flash a lot.