NH, there was an error when creating G3 that DAZ silently fixed in G8 concerning the eye movements and a lot of conversions fell into the trap. I believe the issue was that G3 and G8 eyes move in opposite directions when the sliders are moved the same way. This F'ed up a lot of converted poses as well as converted characters. For me the key was not to Align All Nodes before doing any ERC freezing. You can align the Pectoral nodes if you are converting a character with large breasts to keep the nipples in alignment. By not aligning all nodes you get the alignment that your base character (either G8 or G8.1) has for all the unaligned nodes. I hope that makes sense.
eye and eyelid bone rotations are inverted, one of the axis most likely, I had this problem when doing "adjust rigging to shape" with "adjust rotation" checked (by default it is off), just click the bone and in the tool tab alt-left click on them to see which ones do the 180 degree flip, an easy fix
problems start to arise when the mesh geometry is wonky, eyes too deep (even after adjusting rigging to shape), or eye sockets aren't the right shape so the tear lines up with the eyelid etc, not really noticeable if you do full or half body shots, but face closeups look off, can be fixed in Blender, just a PIA...
"- Velma 
