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Yes. Zimmerman cross-drilled.
However, I don't think it was a faulty rotor. It was the fact that an original caliper piston was not retracting properly due to the age of the seal, which I replaced. It must have become "stuck" when extending under hard braking and overheated the rotor, warping it.
Hopefully, I won't have any more brake-related issues any time soon.
The lesson to learn in all this is that when you start replacing original brake rotors after 105k, you should probably consider replacing the caliper seals to save time and money later.
Of course, my caliper problem might have been unique, but my thinking is that if I'm planning to keep the car for an indefinite period of time and it has 100+k on it, I might as well do what might go out later.
In hindsight, I should have sent off all four calipers to the company I saw somewhere that rebuilds them and powder coats them any color you like for $250 a set or thereabouts. The seals for all four wheels would be nearly this amount anyway.
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