Sorry that you've had such a negative experience with the Warnes. I have not had that same experience and I offer the following comparison as a possible explanation why.
The Mountain Techs are very similar to the Nightforce 4-Screw Ultralights in design as well as material, excepting the use of titanium. They're not vertically split like the other Warne products typically are:
Also my experience with the vertically split Warne rings are that of the Quick Detach variety which I think are a better design than the "permanent" Maxima design.
The Non-QD design is a balancing act between the bottom screws that clamp the rings to the base and the top screws that hold the scope. If the scope or the mount are not at the appropriate spec then the "proper" screw torque can leave one side of the fulcrum looser than the other. It's quite possible to be the victim of production tolerances here.
The Quick Detach design though does not require the same balance of forces to work. There's a flat where 2 screws clamp both ring halves together and one screw applies pressure to the cleat/wedge to secure the assembly to the mount. THe two screws at the top clamping the scope are, for the most part, independent of the other scews. Overall the design's more tolerant of variation in mount and scope tube tolerances.
I've used the DQ Warne rings on my 7mm Mag match rifle (now on its 3rd barrel) with a heavy NF NXS 5.5-22x56 with very little zero shift when removing/reinstalling the scope. Everything's been gravy using the QD design. I own Warnes, some Spuhr rings and some Nightforce Ultralights so I'm not playing favorites or dismissing any criticisms of the Warne designs.
I hope all that makes sense and is a reasonable excuse why I "cheaped out" with the Mountain Techs. If the Mountain Techs fail I'll be vocal about it and will ante up for a better product, when they do fail, with the knowledge that Nightforce will bail me out when my scope bounces down some mountain side.
