[fozmsu]

Not getting the Rom back to stock is a bit of a crap shoot. I will say however that on two seperate occasions while in a Sprint repair center, I saw two seperate people picking up replacement TPs. Both of these replacement phones were refurbs and had custom Roms on them. One guy let me flash him to stock and lock it. The other made the repair center get him another phone. The point is, if a phone with a custom ROM on it can get turned in, repaired and then still come back to a new owner with the custom ROM on it, I think chances are that you will most likely be fine. But that is just my opinion.