The lower half shell 22 includes at least one, {HEAD ~ preferably a plurality} of {TAIL ~ pockets} 26 therein 
The lower half shell 22 includes at least one , { HEAD ~ preferably a plurality } of { TAIL ~ pockets } 26 therein
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH