SM the new VX II is actually optically the same as the old Vari x III by way of same fully coated lens. The design to my understanding is much the same a 3 piece tube with same eye relief and click adjustments. The way I understand it all VX models have received some improvements optically, however whether those improvements are noticable I guess depends on an individuals perspective. I certainly think the VX II is the best of their offerings right now, but would opt for the likes of a Bushnell Elite 3200 and save some cake. It is a great little scope and even with a bit shorter eye relief shouldn't cause you much concern on top of a smoke pole. Mine inline use to wear a 4200 and even with stout loads never came close to the brow.

I am sure Nikons may be good, but one realllly bad experience with a Monarch leaves me suspect of their offerings for my usage still.

Try to do some comparisons for yourself and pick the best one. I use the Leupold 2 piece rings and bases (Double dovetails now) on all my scoped rifles...I think this is an important part many over look when selecting a new scope. Do yourself a favor and buy good bases and rings as well!