ok so this is me pointing and laughing hahahahahah! just kidding lol
anyways this is not a rom it is a file that wipes system, cache and dalvik cache for you.
so for me this is what i do when i flash a rom.
1.make a nandroid backup
2.wipe system, cache, and dalvik cache
3.flash caulkin's format all .zip
4.flash rom of your choice.
flashing caulkin's is just an extra step. i just want to make sure that the rom has a clean slate to install into.