@lesca-
I knew we would get some more input if I kept talking!
There you have it, as dsmid pointed out you would need to run the individual uninstall files for your hacks and the jailbreak before doing the factory reset.
@dsmid-
Question: I know that an update renders most hacks inoperative and they need to be re-installed--> Does an update clear the hacks completely or are there pieces remaining?