Trackside would be a perfect place to host the TCS Nats.
1. A top notch facility
2. The best race director in the world!!!
3 More centrally located, easier to get to from the East Coast and West coast. (probably would be one of the Highest attended TCS Nats)
4. On Carpet which is what they race on in Japan.
No nock on SIR I understand it is a great facility and they just put Carpet in (I hope to get there soon for a TCS Race) but geographically Trackside makes sense.