providing an extrusion die having an inlet portion, an outlet portion, the inlet portion having primary feed holes and secondary feed holes, the outlet portion having a primary slots for forming {HEAD ~ cross directional cells} which communicate with the primary feed holes and secondary associated and intersecting slots for forming {TAIL ~ straight cells} which communicate with the secondary feed holes; and 
providing an extrusion die having an inlet portion , an outlet portion , the inlet portion having primary feed holes and secondary feed holes , the outlet portion having a primary slots for forming { HEAD ~ cross directional cells } which communicate with the primary feed holes and secondary associated and intersecting slots for forming { TAIL ~ straight cells } which communicate with the secondary feed holes ; and
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