I'm going to have to chime in and mention again to avoid the SWFA. I bought a 10x and a 20x because everyone seemed to swear by them. The glass is horrible, and after about a year the internal tube on one seized up. Bought a Millet TRS-2 for $240, it tracked as well, the turrets made their adjustments even in cool weather, and the glass was considerably better, not to mention that it's illuminated, too. And now they're discontinued.
If you're looking for scopes and think that the SWFA SS series is good, I personally would think it's time to keep looking. If you want one, I've got a 10x and a 20x that I'd sell cheap.