Being the owner of a Zeus 336 and wanting to upgrade I have a question that someone with much more knowledge than myself could answer..most or all of the 640 scopes that I could afford have low magnification 1.5/1.6..with my Zeus I generally have to go to 2× to shoot which is 5.2 so my question is; would I be better of or at least as good by going with a 336 scope with a 4-5 native mag because that's where I'm going generally or is the magnification increase better in some way on the 640 scope that would make it better than the 336? Thanks in advance