Coincidentally, I have AD2000 and M3, but I think a more appropriate comparison would be to a CKKIII, right? Fully discrete, no feedback and such. Umm... that right there would be the limit of my tech knowledge, so maybe they have nothing common other than those features.
Anyways, it seems y'all only pretend to worry about FOTM-ness but just go ahead and buy them things anyways. So yeah. Just do it.