toughness is to SR177 what strength is to SR101? <img src="/ubbthreads/images/graemlins/frown.gif" alt="" />
or is it....Sr77 is to toughness what SR101 is to strength? Any Derrida-esque thinkers here? <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />