Oh boy, I'm at the beginning parts of Chapter 4, and I'm rebuilding my party. Trying out stuff like Pirate, Ninja, and Salve Maker. Pretty cool stuff!
I tried mixing Tiz's extensive Spell Fencer skills with Pirate, and got really good results so far. With enemies who have elemental weaknesses, he can really smash them hard, especially with the two-handed skill.
With Ringabel, I gave him Bow Lore so he could keep the combat playstyle of a Ranger, I put a few job levels into Salve-maker to get several good item skills, and I mixed that command with the Ninja job, and now he can evade, heal/revive with item mixing, etc.
I decided to drop Agnes' full mage playstyle for some Ninja fun, and mixed in a few abilities of the Red Mage for BP boosting when evading. Working out pretty well too. This could certainly be a ton of fun. I'm considering swapping it back (Red Mage w/ Ninja commands) later if I need a real mage who can also self-evade and get free BP.
Poor Edea is stuck as a Valkyrie. Maybe forever. It just works too well on her. Lol.