In these preferred embodiments, {TAIL ~ the locator pins} are integrally formed as part of {HEAD ~ the inner core} 
In these preferred embodiments , { TAIL ~ the locator pins } are integrally formed as part of { HEAD ~ the inner core }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD