These additions are easy to understand, as well as simple and quick to get going in a game. Ran a one-shot with some folks who are a bit more into hard limits and mechanical minutiae than say your usual 2D6 narrative-adjacent games. We had a real good time!
This perfectly slots into FIST existing level of encouraged risk and reward, especially post-second revision, and I found that using it with Project BRKN-Shackle by Ken Petti really made both modules pop! Turning the game into a VERY direct send-up of works like The Man from U.N.C.L.E., James Bond (of course), The Avengers (the British spies) and your Mission Impossibles.
Just a smart, slickly designed addition that adds a mechanical set of tools that in many ways enhances the feelings and scenarios the game has been aiming to invoke in its players.