For purposes of the present invention, the term pre sighted setting indicates that the mat has been aligned with a plurality of targets and {HEAD ~ each} of those alignments is established as {TAIL ~ a setting} 
is established as
For purposes of the present invention , the term pre sighted setting indicates that the mat has been aligned with a plurality of targets and { HEAD ~ each } of those alignments is established as { TAIL ~ a setting }
OTH OTH OTH OTH 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 OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL