I’m really happy Franky got a power-up but I can’t help but think a new fuel is not the right step (or at least it is not enough). I’d much rather see him take some Pacifista and Seraphim tech than just receive a stat boost. The bubble shield of the new Pacifista seems perfect for our favorite cyborg.
Also, while I doubt he’ll renounce the new Cola to go back the old one, we can never truly trust CL⁴¹oda. This might always be a one time thing