Hello !
I would like to report an issue i’m facing with orientation of EPIC_control_01 and control_01 guide.
When mirrorring an EPIC_Shoulder_01 for exemple, joints are properly mirrored because X is aiming at opposite direction from the other side. That’s the usual mirror that we use in every rig.
But that’s not the case for EPIC_control_01 and Control_01.
The solution I found is to use PRE scripts that updates the orientation of the guides before building them (add 180° in Y local rotation).
But it needs some manual operations that could be avoided, I guess.
Maybe a real solution could be found in the “Dupplicate Sym” function ?
I think it’s a bug, but tell me if i’m wrong 
mGear version : 4.1, 4.2 (from what i’ve tested)