Around here, rules are pretty much the same. Our biggest local pulling organization, Straight Diesels, runs pretty much NADM rules almost word for word. Especially in 2.6. 2.8 is apparently being phased out, so we are having a few step down into 2.6 and a few move up to 3.0. I know you can hang weights with them in WS as well, and use water. There isnt a protrusion rule here, at least not yet, so you have the guys with straight 2.6 chargers running against 3.0 chargers with race covers. The 2.6 is getting pretty strong here too. Its not on a midwest level, but it used to be a 500 horsepower truck could take the class, now it takes 800 plus.