While {TAIL ~ the preferred OSM} has been described with {HEAD ~ an outer sleeve compliant layer} an OSM without an OSCL is also envisioned, for example in applications requiring a very low cost replaceable surface component 
While { TAIL ~ the preferred OSM } has been described with { HEAD ~ an outer sleeve compliant layer } an OSM without an OSCL is also envisioned , for example in applications requiring a very low cost replaceable surface component
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD 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