This article describes a methodology for structured H-infinity synthesis that reconciles classical and robust control concepts. The aim is to provide a transparent and methodological process to tune the weights used in the structured synthesis. The process is exemplified on a simplified model for the atmospheric ascent-flight control system for the VEGA launch vehicle. The results show that the same gains used for a real flight can be recovered leading the path for industrial transfer of the H-infinity structured control to launchers.