Still have to put it all together, 24/7. I have been diverted to some other tasks, but here are the cliff's notes:
These are three quality scopes.
The Swaro is the optical winner, and not by a little. The image is spotting-scope quality. The reticle is a quick and effective way to make elevation corrections, but not as precised as dialing.
The Leupold is a very nice scope overall, and edges out the Vortex optically at max magnification, but has some real drawbacks in a few areas, but none more so than the variable eye relief. I had to move my head more than 1/2" between low magnification and high magnification!!
The Vortex is a crazy good value and beats out the Mark4 in every category except contrast at max magnification. It had the longest eye relief and was dead nuts constant throughout the magnifiation range, which was also the widest.
I like the Swaro on a trim hunting rifle, and the Vortex for a dedicated LR setup.
The Leupy is very good, but I would not purchase it over either the Z3 or the PST, especially in light of it's significantly more expensive street price.