In looking at the UOA you posted, the oil didn't shear very much, the flashpoint is high and there wasn't that much fuel in the oil. Wear metals seemed pretty low considering it's still really early in the break-in stage.
All of that would seem to suggest that this engine isn't particularly hard on oil. Still, given that you've probably posted the only UOA on a Tau, I'd probably do one at 7.5K and one at 10K, both w/TBN, then decide on the OCI. 10K may be easy for this engine, but it's still an unknown quantity so I'd want to be sure. Nice ride, BTW.