Mine has click adjustments, so it must be one of the new ones.
But I'm betting that even if the parallax is set at 50-60 yards this is not your problem. I have no problems getting good groups with my VX-2's.
Like I said, the reticle moves around quite a bit when my eye is not looking perfectly straight through it, at least an inch or even more, thats MUCH more than 2/10ths of an inch. Since its not installed on a target rifle and I do not have an adjustable cheek piece the way I look through the scope varies a little bit from shot to shot, thus leading to bad groups.
How much do the reticles of your scopes move at 100?