At any particular magnification, if the eye relief is set correctly then the eyebox is good. The problem with this model is the eye relief changes considerably with magnification. Interestingly it isn't the usual too little eye relief at high magnification issue that ails some scopes. IMO it actually has too much eye relief at low magnification.
As a result there's a nice eyebox at 4x, a good eyebox at 12x, but the eyeboxes don't overlap completely.
Hopefully I'm giving a reasonable description without overstating things.
I should add my experience is with the VX-II version, not VX-2.
