I am considering purchasing one of these, as I would like a little more magnification than my 3x9, but would still like a light weight scope. I owned a 4.5x14x40 VX-3 for awhile and didn't really care for it. It seemed to be very difficult to "get behind". My head had to be in the perfect position to see through it well. I read later that it had a very small eyebox. It seems like I also read at the same time that the 4x12 had a small eyebox as well. I'm no optics expert, and small eyebox may not be the proper way to describe it, but is the 4x12 an easy scope to use?