As I don't see an option for this, I wanted to ask.  Two days prior to server wipe, I want to allow the purge.  Since the days of the week change with each wipe, would I need to just modify the schedule to match the days of the week each wipe?  This wipe I want to activate the PVP on Tuesday and Wednesday.  Next wipe (a few weeks later) it will be on Friday and Saturday.