What is a proper "gear' for Accuacy Challenge Mod?

[MizuIro-H]

#31555
Here're my opinions above.
So my next question is: what is a good "gear" for this mod to make it most useful?

[N0Y0U2114]

None of this matters too much to me, but letting AC go lower then 60% does given that in most modes the lowest judgement is averaged at 50%

In Taiko for example, your first hit has to be perfect or fail with a minimum of 60%

[MizuIro-H]

That's an another way to improve it.
And you easily avoid this problem by changing to "Max Possible Accuacy" trigger mode(I'm using Japanese so I don't know the exact name).Then it will fail only you're impossible to achieve higher than this acc in this play.