Lutach, I'm not sure where you live, But RC Pro is almost everywhere in the U.S. The do not have rules that limit motors in their classes
http://electricoffroad.rcprosites.co.../contentid/237
I personally do not have any desire to run ROAR, till they drop the hard case rule. I have been running soft packs for two years, no failures, no damage.
Work because i gotta, play because i wanna
People here hate Nitro, I love it. I start it, run it about 50 ft from me and it dies, I go after it. Perfect exercise