don't you have to have a 17 in the prime requisite of the new class in order to dual class? even if it's 15 (not sure which of the two) how the hades did he switch over? i can see bending a rule in favor of improvement (like Coran the F/TH getting a 3rd slot in bows) but that's just silly. if they're going by "role-playing" (do AI's rp?
) they should drop his CHA to about 4 and help his DEX out...