Turbo cars rarely have a green light that's better than .050, and after Madison I doubt Steve will be into playing finish line games. The conditions are going to be the same all weekend, so don't look for any naturally-aspirated cars to come close to hitting the index permanently.
Add all of that together and if Steve's opponents can keep it clean and green and run -.450 to -.480, it's a perfect storm to damage that BB/AT index of which you speak so ominously. He might not cut a stellar light, his opponent does, then the opponent runs it out the back end (Matusek likely would as well). With the advantage Matusek has on the field, he might find it worth his while to tag a -.10 permanent CIC. I don't think you'd see Bruno Massel pulling that stunt; Massel has a chance to run for a divisional Top 5 finish or better.
Having said that, Steve's group deserves that Brut Essence of Racing Award, hands down. Have you seen the photos of the damage? That was just a couple weeks ago. I thought he'd be out a lot longer for sure. They deserve the #1 spot and I hope they can finally go some rounds on raceday.