Ergomax LMG and Pheraplex are very chemically similar.
They are basically the same base compound BUT
Ergomax LMG = 70% alpha isomer and 30% beta isomer
Where as,
Pheraplex = 97+% alpha isomer <3% beta isomer
(depending on the clone the beta isomer variation from 0-3% or even a bit more is possible)
The beta isomer = more androgenic, less anabolic
The alpha isomer = more anabolic, less androgenic
And generally speaking,YES, the more androgenic the compound the more sides that will be associated with it.
More androgenic compunds tend to be the compounds with higher affinity for estrogen aromatization.
On the orastan-E, because it is unmethylated you need to use a higher doasge of it AND/OR stack it with some bioprene or an amplifier like AX Trisorbagen.
Back when i ran Orastan-E with Halodrol-50(original w/DMT) I dosed the Orastan-E with Bioprene for improved absorption. It is also important to realize that stacking unmethylated compounds with other hormones increases their absorption as well, but in general I would use some kind of an "anabolic amplifier" or absorption agent with unmethylated compounds.