The results of the kinetic investigations on the early decomposition behaviour of these alloys gained independently from each other by means of measurements of the SAXS‐intensities, I10, and the maximum of resistivity, Rmax, agree very well. That means these two physical quantities fulfill most likely the basic precondition of the jump model that the number of jumps is independent of both, annealing, Tq, and aging temperature, Ta. Conclusions are drawn from these facts about the microhappening “of the early stages of decomposition” of the investigated alloys.