Brought the SWFA 3-9 to cousins house to compare to a couple of Nightforce scopes he has. The conclusion is the NXS has really nice glass. Better than the the other two. The SHV and the SWFA were real close. It was hard to see a clear advantage but if I had to give it one it would be SHV but not by much. One othe note, the two NF scopes had more eye relief. About a .5" advantage. I still think the SWFA is a great scope for the price but the NF are really nice. I may look for a NXS F1 one day once I save some pennies!