Originally Posted by
PointWeasel
My only hesitance right now is that knowing that AE and UA earning charts don't always match up, I could be screwed by booking this early.

You got that right. There is
not one instance where AE is more generous, and plenty where its less generous (check TK, LH, etc)
The UA chart is for RDM only for now, nothing about elite mileage yet.