So, it's ostensibly settled.

My usual alignment shop is no longer receiving the BFG gForce TA KDW-2. The tire has been replaced by the TA gForce Sport Z. After a lengthy discussion, I'm going to try out this revised design. Considering they're a 340 treadwear tire with a high-silica compound, it sounds like they'll fit my needs quite well for the next 30K miles or so...

Deride my decision if you feel like it, but I've got to make some concessions at this point. h: