What type of system is it fella? I take it it will read both rear wheel speeds individualy and reduce the torque until neither are spinning as fast as the front? Its worth remembering that with an open rear diff one wheel can spin rapidly at a huge rate compared to the other. If what ever system you use reads just one wheel speed then the chances are it won't do much and shouldn't be trusted to lean on when pressing on. There are some extremely crude traction/launch control systems out there that actually do very little if anything. Just worth baring in mind.