Re: Questions about a RGT42DXFMTLF.
i have an edge pro and an edge pro II. visually, they are quite similar - low profile design.
the edge pro is superior, yes, but i wouldn't call the EPII crappy at all. i've given mine plenty of abuse and it's still great. sadly, the two are not interchangeable.
in fact, one of the things i prefer about the EPII is the fact that the arm doesn't rely on bushings.
i think one of the EPII's failings might be the non-locking studs. i've noticed a little play in these on my RGT42FMDR. incidentally, i'm not a fan of the flat finish on the model you're looking at, but each to their own!