I ended up with a set somehow, I didn't order them that I do know.
The very first thing I noticed was they would not be true side to side, at the top of the saddle in the bottom half as a set. The scope would bind even without the caps at the top of one bottom but on the opposite side of the other bottom, almost like they were not square with each other. I tried to use my alignment bar and the same thing occurred. It was like they were not machined/matched as a set. I then played with the ring orientation, swapped their location, 0 MOA rings, same issue but reversed as to where the binding occurred. I then spun them 180º and the binding was again reversed. I tried only reversing one ring, the alignment was better, but not perfect. The issue was not improved pushing the rings forward or rearward against the slot either. I did not try to leave the clamps loose and install the scope and caps to see if they would align. I finally settled on just putting them on the rifle, pushing the base as far forward as possible, locking them down and lapping them, way more than I would have expected to achieve a nice stress free saddle for the scope. I then bedded them to that scope, 6x SWFA, and they have been solid. The HD nature of the SWFA scopes, that misalignment probably would not have hurt that brand of scope, but something with a thin tube design, Leupold or Swarovski, would have definitely left ring marks. I sold that rifle to a co-worker and his only complaint after having the rifle about a year were the screws are rusting.
If you are running anything other than a picatinny spec mount, they will not fit because of the dual recoil lug design. I do like the robust nature of them, they are light and they are attractive. The finish on the set I had was not slick, it was physically discernable between them and a set of Seekins, even in a blind test. They do remind me of the Vortex/Seekins rings. I did like the dual recoil lug design, thought it would be easier to square the rings up on the picatinny rail and I thought with a heavy recoiling rifle and heavy scope, that design would be great at preventing the rings from moving on the rail..
****Edit to add:
I just went to look and I have noticed that they have changed them slightly, maybe updated the machine process, now they offer both picatinny and Weaver style slot dimensions (maybe they always did) and they have a logo machined into the cap versus the white screened logo on the side of the version I had. Maybe I should order a set and see how they work.
I agree with a CNC, they should be in perfect alignment, but how many different CNCs are they being produced on and how many people are involved in the initial setup of the tooling?
YMMV
you drug your rifle behind your car??
