You can pick something up over the footprint and it will give all your PTO back from the original drop not just the day your picking up over. If that then brings you below 70 hours credit the trade will be denied. Don't bother calling to get it switched to UTO they will say no. Just add a VDA on top of the PTO and you'll get it back that way. Again you cannot go below 70 credit. Only way to do that is UTS.