Methods for measuring the resiliency of {HEAD ~ golf balls} are well known by those of ordinary skill in {TAIL ~ the art} 
Methods for measuring the resiliency of { HEAD ~ golf balls } are well known by those of ordinary skill in { TAIL ~ the art }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL