My father and I both had the same windage and elevation problem as Bob did. We both have new 45x comps. Had to send mine back twice. When my father called with his complaint the reply was "you'll probably never need to go down to the "1" or "0" so it should be fine". Seems that there is a spring under the turret cap that gets bound on itself, and so it won't compress all the way down if you, like Bob and myself, try to run the windage and elevation through its full course of travel.
They did pay for overnight shipping on both of my returns, and the customer service person did "make it right" for me, but it is a little disheartening when you pay $1,000 and coming out of the factory it won't do what it's supposed to do. Lifetime warranty did give me a measure of confience for sure.
The clicks are repeatable, the glass is clear and bright (and you can get it to focus correctly
unlike your other experience with a different maker), the reticle is plumb and the parallax is holding well.
Despite the inconvenience I would still, at this point, buy another one.
Mike