Cheese!

[Sejs]

Would anybody allow a Wizard 2/Cleric 1 (or Wiz1/Clr2, or Wiz1/Clr1/Something else 1) with Precocious Apprentice and Southern Magician to take levels in Mystic Theurge?

Nope, particularly because the FAQ expressly says Precocious Apprentice doesn't work for satisfying pre-reqs, and failing to note that in the feat itself was an oversight.

While I'd agree that mechanically Southern Magician would work for the pre-reqs (you can cast 2nd level divine spells, technically), no I wouldn't let it fly. Anyone trying it at my table would be told to stop trying to dick around the DM.

Playing around with the rules can be fun, but it is impossible to pull the wool over the DMs eyes.

 

[EyeontheMountain]

Would anybody allow a Wizard 2/Cleric 1 (or Wiz1/Clr2, or Wiz1/Clr1/Something else 1) with Precocious Apprentice and Southern Magician to take levels in Mystic Theurge?

No, I accept that there is a intent to the rules, not just black splotches on paper.

 

[werk]

Would anybody allow a Wizard 2/Cleric 1 (or Wiz1/Clr2, or Wiz1/Clr1/Something else 1) with Precocious Apprentice and Southern Magician to take levels in Mystic Theurge?

I almost would allow it just because they are wasting two of their very limited number of feats to get to the PrC early, but I don't think it'll pay off in the end. I might allow it as I'm interested to see why they thought it would be such a big benefit, and interested to see if it's worth the sacrifice and rule bending.