above "C" rank aswan potentials

So what your are saying is that it is actually based on your honour lvl, not the circulators?

I'm pretty sure he's saying, you use circulator, it chooses the rank, then chooses the effect.

I used a rank 9, well a few, and stopped myself at a Rank S ability, that gives 39% buff time. Just didn't have enough to bother going further, and can deal with extra buff time for now.