To a lesser extent, where these moments occur beyond their initial joining but to the main question:
Does Banon's level matter when new party members join your party afterwards in determining their level?
I thought I'd "easy route" a low level game by having Banon gain some solo XP a few times and get his level up (and score some nice GP too!) from a mockingly low Level 2 to roughly 10. I'm wondering if I left him at level 2 if Shadow, Cyan, Gau and Celes would join at a lower level?
Also,