So - hopefully the thread has not gotten too hijacked. Last night pulled off the tires, and guess what? They were on backwards. If you look at the side of the tires, there is a little thing saying "rotation" with a little arrow - go figure. To be honest, I think that there may have been a combination of factors in my initial ride in these tires:
1) Backwards - probably one of the bigger ones
2) Previously I inflated the tires to 100psi - as it says to on the actual tire. However, a slight overinflation seemed to help out a ton this morning (~105psi).
3) I noticed in taking off the tires last night that they were a lot more flexible than they had been on the initial install - I'm guessing that a few days at relatively full inflation helped stretch them out a bit - nicely supple.
Thanks to everyone who had recommendations. And to everyone who said "it has to be you", you may want to reassess your own know-how. Durr.