Hey guys! Couple of questions: 1) Do I REALLY need the Saphir Creme Renovatrice? I do have some scuffs on several pairs of black oxfords, nothing too bad - usually the wax polish does a good job with them. I've been thinking of treating the scuffs with the Renovatrice. Any experience with it? 2) What shade of Pommadier would you advise to be used on these: Dark Brown or Havana? Thanks!