From what I have read in the forums, the experience needed for an AA is equal to that of leveling from 51 to 52.
This leads to a couple questions:
1) Does experience cost for an AA ever increase or is it a fixed amount?
2) If a toon kills a MOB that would normally give experience at level 51, but the toon is high enough level that the MOB is green, will they still get AA expereince? For example, if a lvl 65 toon kills a lvl 42 MOB, and has their exp set to 100% AAs, would the AA expereince get awarded as if they were level 51 (some exp) or level 65 (no exp)?
3) When in a Hot Zone, does the expereience bonus apply to AA expereince also?
Thanks for your help