Keep this inner ability as a BM or keep going?

Current Inner Ability:
16 Move Speed
27 Atk
6% dex converted to str

This gave me an overall boost of ~7k topside range which I thought was pretty powerful. I feel like Boss % might be better, but I am only sitting on 200 more circulators. I really don't wanna be stuck with a crap inner ability when unlimited comes around so I guess my question is would you guys keep this inner pot or keep going for Boss/Buff Duration?

Thanks in advance for the info