Fantastic input guys; especially regarding the greater "sensitivity" to focus distance with AO scopes. That they are not simply an improvement over non-AO scopes, but that you give up some of the "in-focus" range, was useful to the extent that I am now not going to consider them for any hunting applications.

Tonight I am going to attempt to adjust the parallax in my VX3i 1.5-5 since I really like this scope. This just means I need to get another one to put back on my .270.

Thanks again for all the great input.