I skimmed so I do not know if it was mentioned, however,

Going Despair > Transpose > Paradox > Blizzard 4 only puts you in UI2, not UI3, so you would need to cast Blizzard or Blizzard 3 to get to UI3 so that when you swap to AF, you will gain the Paradox Stack. If you have to use a GCD to get to UI, why not just Blizzard 3 at the start.