Speaking of bad feelings, it was mentioned in a post before, but starting a dungeon boss fight with 2 Sen and no buff will be awkward too :/
Just the idea of having both Kasha and Gekko but not Shifu or Jinpu and have to go through Yukikaze on the boss first...
Then off we go to decide: Do I Jinpu, or do I Shifu? (Obviously I would go Shifu, because come on, its Shifu)

Point is that the result is a non-fully buffed Midare, and I may not like to do a bunch of the same, but I really dislike not doing a full buff of the one and only...