Matt Romanowski

It's been a story at Racecar Engineering throughout the test. This article has some really good info on it and a couple of good photos of cold graining versus regular graining.

https://www.racecar-engineering.com/...4rUWCLJXQ#Top1

It's 30F here today, so I'm guessing my Suburban will only exhibit cold graining

TFBoxster

Coochas

I always find it cool when I get significant graining and it smooths away in the nest session.