Well another discussion on the stunty winds of change prompted me to check into the viable squig-changes that may eventually find their place on their roster and calculate some CAS-chances for the wee hoppers:
Mind that these % take into account an OFAB (2+) and Bone Head/Very Stupid (2+) roll, not using any RR's. Still though MB seems to be better than RSC. Though MB+RSC might be something to ponder... :D