TZ, if Ire/Herald spawn, check next TZ, look at what time it is, if is the beginning of rotation just make new game and hit TZ again, if we are close to next TZ I will either idle and go have a smoke or a piss until next TZ, or do Andy/Meph/Dia (and if next TZ is a boss I will just try and farm the boss and not uniques, because of statues).
Then once I did 2 TZ if I had at least 1 Herald spawn, will shard an Act that wasnt in the 2 TZ I did, and isnt going to have on next rotation (3rd one).