On the basis of the scaling approach and CORSIKA simulations data the radial scale factor of the lateral distribution Sump Hose of electrons in extensive air showers is confirmed as a potentially effective primary mass estimator, and its sensitivity to hadronic interaction model is investigated.It is shown that improved composition results both on average and event-by-event basis can be achieved taking into account the universality property of air shower development expressed by the relation between Wet Shaving the radial scale factor and the longitudinal age parameter.The enhancements of such a theoretically motivated tool for an unbiased cosmic ray composition deduction in a wide primary energy range for current and future (multi-)hybrid air shower measurements are discussed.