Do both abilities- the immediate step for ac +2, and the immediate drop for ac +4, require the use of one grit point?
Based on dodge as written, and comparing it to the writing in version 1.0, I read it as saying the step for +2 to ac costs a grit point, while the second part- dropping prone for +4- merely requires the 'slinger to have a grit point remaining.
Thoughts?