Is that not a limitation?
Fighter//Monk//Rogue?
Lotsa skills in class, lotsa feats, lotsa BAB.
Brad
Can you have more than one PrC at a time in a Tristalt since you can't in a Gestalt?You need Factotum on any Tristalt build because at that point the only thing that matters is breaking the action economy.
Factotum 20//Zen Archer Monk 4/Swashbuckler 3/Soulknife 2/Soulbow 1/Chameleon 10//Eidetic Wizard 4/Sage Sorcerer 1/Ultimate Magus 10/Swiftblade 5. That ain't workin', that's the way you do it-- get your actions for nothing and your spells for free.
Can you have more than one PrC at a time in a Tristalt since you can't in a Gestalt?
...and I'd like to modify my previous post to Edit: Psion20//Wizard20//Factotum11/Urpriest9, based upon your very convincing mention of the Factotum needed.
Monk/Psion//Wizard14/Incantrix6//Factotum11/Urpriest9ren't bad. Since you're not going to Factotum 16, though, you're going to want Monk with Tashalatora. I like Chameleon builds in Gestalt, because they give you a lot of flexibility with ability scores and SAD tricks.