Back to .247 from custom rom
I'm new to rooting, custom Roms, etc., but am having fun with it. I'm running bootstrap and created a nandroid of my phone after upgrading to .247 as well as backed up my apps with ROM Toolbox. I know you're not supposed to flash a nandroid of a different Rom than the one you're on, so my question is what is the best way back to .247 after running CM10 or other custom roms? Is it best to just run HOB again? Or do I just flash the .247 file already on my sd card? Something else?
Thanks for your help as I start down the path of enlightenment and phone freedom!