Either way I think. Give it a bit when you get trates dose again. See if what you have is established then just keep it constant til it wipes it out quickly.
Update:
I've only dosed the 2ppm ammonia once.
Friday: dosed 2ppm ammonia
Saturday: 0 ammonia 2ppm nitrite 0 nitrate
Monday (today): 0 ammonia, 0.25 nitrite, 10 or 20 ppm nitrate