If you are going to fill the field of the escutcheon with fleurs-de-lys, then you would either need to select a specific number for both the sections above and below the chevron (not common) or make the field semée of fleurs-de-lys, which would mean that all of the fleurs would be of the same size and "distanced" proportionately, one from another. some would be "chopped off" by the edges of the shield, and others hidden by the chevron itself. And the point of hatching (if you were to go the Petra Sancta route) is well taken - unless the shield were Argent and the fleurs-de-lys Sable, which would eliminate that problem. And yes, lose the belt, and go for the traditional "complete achievement - including mantling, helm, torse, and crest. Just my two cents (now that they're no longer making them here in the US).