It'd be nice if they took off the kenki cost of the gap-closer and gap-creator (how would you say that?). That's my take for now. I think it'd be a good start because samurai is all about up-time, but in most situations (from what I've heard) you want to avoid using those abilities to conserve kenki for Shinten or abilities. It would be a nice QoL change. Just keep the cooldowns they have but take away the kenki cost.