[Lazy_Perfectionist]

IGNORE THIS POST, Out of date

From what I understand, that will work perfectly, giving 72 hours, with one caveat. Even with hosting postponed, if everyone's turn is in, the quickhost server will well, host, and get set back to the regular time. Just something to keep in mind. If, however, his turn doesn't go in, it won't host until the entire period is over.

There are several solutions
1). If you get a new turn in your email, simply go back and postpone again. This is the simplest, probably best option. I recommend this one, since it means warhammer sent in his turn, and you should only need to go back once.
2). Set turn intervals to 72 hours or even more. Then, when you're ready to resume a regular schedule, change the interval back to normal and add postpone hosting by a negative number (since reducing hosting interval leaves current turn time intact, until everyone gets their turns in at least once).
3). Postpone by so many hours, and turn off quickhosting.

EDIT: Sorrys. Busy, this post was written over the course of at least an hour. Its' out of date.