The findings presented in the preceding articles of this special issue have been organized, analyzed, and summarized. Commonalities among the various polymerization systems investigated in detail have been identified and phenomena of general validity were found. Increased insight into the mechanism of initiation and chain transfer processes led to the development of a comprehensive kinetic model which was used to describe the assembled data. Excellent quantitative agreement between experimental and calculated data indicates the validity of the mechanistic/kinetic model developed from chemical principles in regard to fast-initiated nonstationary carbocationic polymerizations in the absence and presence of proton traps.