Final Fantasy Hacktics

Nice mod! Just installed it and I'm playing around for a bit to choose which of the extras I'll use. I'm thinking of maybe using the fixed bravery/faith to set up a challenge run (all chars have low bravery or something like that), but to do that I'd have to use the save editor to change each character's bravery. Could the editor mess up the save somehow because of the mod or something? Would the editor even work properly? Or maybe I should try to find a way to do it with cheats instead of the editor?