This paper presents a new evaluation of the performance of the fast super decoupled state (FSDS) estimator when using voltage magnitude measurements as well as injection and flow measurements. The FSDS estimator is tested on different IEEE test systems with low R/X ratio lines and on distribution systems with high R/X ratio lines. Comparison is made with respect to the fast decoupled state (FDS) estimator. The results indicate that the FSDS estimator is capable of handling all type of measurements like injections, flows and voltage magnitudes. The FSDS estimator performs efficiently like the FDS estimator on systems with low R/X ratio lines. However, for systems with high R/X ratio lines, the FSDS estimator is superior to the FDS estimator.