Sigil: Diskusní fórum

NPCs don't exactly scale to your level... they scale to your experience. There are six values they scale to:

89,000 exp
161,000 exp
400,000 exp
800,000 exp
1,200,000 exp
2,500,000 exp

They are scaled to your experience rounded down. For example, if you have 300,000 exp then the NPC will be scaled to 161,000 exp. 1,200,000 exp is the highest they scale to in SoA. The 2,500,000 is only used for recruiting in ToB. So if you have much more than 1,200,000 exp before recruiting someone in SoA, they will be scaled way below you. This is why small parties that gain exp quickly will find that Imoen is far behind them when they finally get to Spellhold.

Some classes (thieves and bards especially) may be higher level when you recruit them simply because the rogue classes require less exp to level up. If you are a mage with 161,000 exp and recruit Yoshimo for example, he will also be 161,000 exp but be a few levels ahead of you.

Another thing is that the NPC is scaled at the moment you enter the map on which they are. For example, if you enter the Copper Coronet at 161,000 exp then Nalia, Anomen, and Korgan will be set to 161,000 exp. Even if you do not recruit them and go off and obtain a million exp and then come back, they will still be 161,000 exp.