I’ve had two XRS IIs for a couple months. I can best compare them to the gen 2 Razor, having shot one for the past 4 years and still owning two of them. So I’ve done quite a bit side-by-side between the XRS II and the g2 Razor.
I’m planning on doing a write up, but I’ll just brief my take so far.
The XRS II was a challenge to get set up properly compared to other high end scopes I’ve onwed. The eye relief is quite long and I had to add a spacer to extend my LoP to get it right. Then I could go through 3/4 of the diopter range without the reticle losing focus. The image initially wasn’t clear, because I didn’t have the right diopter setting. And my hypothesis is this is actually the source of most people’s initial criticism of he XRS II glass. I’m guessing they don’t have it set up correctly. Especially the people who just looked through someone else’s or a demo.
I say this because after getting the diopter set up correctly, which I was finally able to do looking at the moon and adjusting it until the image resolved, the clarity exploded. At the same magnification, I don’t think it gives anything up to the g2 Razor.
What it does lose to the Razor on is the eye box. It’s just not as forgiving as the Razor. Probably has to do with the smaller objective (50mm vs 56mm).
Other than that, it’s just the feature sets, where everyone will have a different preference. I actually prefer the Bushnell zero mechanism and zero stop over the Razor. I also prefer the non-locking elevation turret. Oh and it was nice to shave 10 oz off...
I know you’re comparing the Tango 6, but thought some of this might be helpful.