making a first perforated laser cut having a perforation spacing, in {HEAD ~ said panel} of {TAIL ~ substrate material} to define a substantial portion of a perimeter of said irregular shaped substrates; and 
of
making a first perforated laser cut having a perforation spacing , in { HEAD ~ said panel } of { TAIL ~ substrate material } to define a substantial portion of a perimeter of said irregular shaped substrates ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH