Adding some int on 1v1 BP for longer buffs and int scaling?

Really wish my buffs would last a little longer, and I'm thinking the new int scaling for buffs would make up a little for losing some str. I also have to use a refresher in the middle of buffing, which is dumb lol.

I'm not exactly a pro at this game so I'm wondering if anyone thinks this would be worth it. How much str could I get away with sacrificing, and would it add enough buff time for it to matter? Would something like an int ring be better?