{HEAD ~ Size deviation} can be less than about 10% rms, less than about 9% rms, less than about 8% rms, less than about 7% rms, less than about 6% rms, less than about 5% rms, or ranges between any two of {TAIL ~ these values} 
ranges between
{ HEAD ~ Size deviation } can be less than about 10 % rms , less than about 9 % rms , less than about 8 % rms , less than about 7 % rms , less than about 6 % rms , less than about 5 % rms , or ranges between any two of { TAIL ~ these values }
HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL