MS,
Apology,
Now I understand what you mean.
In that sense, I have no idea to determine Vmo/Mmo by AOA.
Meanwhile, from my previous observations for A 330-200: F3 landing, at Vapp AOA is around 7.5 degree regardless of weight. This can be read from one maintenance page of FMGEC.
I was keeping this in memory for the worst case scenario, even before the BUSS is invented
