Are all triple disc the same? I'm planning on a tranny up-grade in the near future and was wondering what if any are the differences between SC, ATS, TTS, and so on. I know," how will it be used?" For me alittle of everything rice burning, minor towing(less than 10,000 lbs.) and alittle offroading. Is there a general purpose TC, a rcae TC, a towing TC? Thanks for the input