Well, I have all summons but Ultima and Zodiark.
My main party is something like this.
Vann - Swords and Shields/Katanas Lv 58
Balthier - Guns/Great Swords Lv 48
Fran - Bows Lv48

They all have every single Magic and Teknik
and my back up team, they are all about Lv 43
Should I try to go take Ultima?
Any tips for the fight?

u should try to get ALMIGHTY OMEGA STAR secret esper only can get when u have a character with party level 44 45 46 47 48 49

This is the first I've heard of ALMIGHTY OMEGA STAR - does anyone have more information about this esper?

lol@benehaelohimfortakingffxiiadvicefromgaramondse riously.

Nice! getting Chaos at that level must have been fun. If you can do that, I don't see why you can't get Ultima.

Yep. I got her. She was actually REALLY easy. It was harder getting to her than fighting her.

This is the first I've heard of ALMIGHTY OMEGA STAR - does anyone have more information about this esper?

The story of getting this esper falls in the lines of crazy side quests like Excalaber II in FFIX, Cheese Weapon in FFVII and needing a pocket station for the added items and summon power in FFVIII

Thanks for clearing that up Reese - my last post sounded more gullible than intended, just looking for validation one way or the other.