Keep buffs up, reapply your Higanbana as close to zero as possible, Midare goes brrrrrr.
You learn Kenki Mastery I, which introduces the Kenki gauge and positionals on Gekko/Kasha. Use Kaiten exclusively on Iaijutsu (Higanbana > Midare).
Use the above and read Level 52 for the rest.
You learn Kenki Mastery II. Begin to Kaiten all Iaijutsu, use excess Kenki on Shinten, use Level 70 Openers.
Reserve Midare 1st for encounters that require you to move exactly as you need to cast Higanbana with Bana 1st opener (e.g. UCoB Twintania).
You learn Tsubame-gaeshi. Use this exclusively after Midare Setsugekka (ST) or Tenka (AoE), never after Higanbana.
You learn Enhanced Jinpu and Shifu. Congratulations! You can now study up on the max level rotation and practice it on Innocence.