a first screening layer, adjacent to said panel core, having a predetermined non thickness dimension that is less than {HEAD ~ said pre determined non thickness dimension} of {TAIL ~ said panel core} and 
of
a first screening layer , adjacent to said panel core , having a predetermined non thickness dimension that is less than { HEAD ~ said pre determined non thickness dimension } of { TAIL ~ said panel core } and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH