The substantially linear olefin polymers preferably have {HEAD ~ at least about 0.01 long chain branches/1000 carbons} and {TAIL ~ a molecular weight distribution} from about 1.5 to about 2.5 
The substantially linear olefin polymers preferably have { HEAD ~ at least about 0.01 long chain branches/1000 carbons } and { TAIL ~ a molecular weight distribution } from about 1.5 to about 2.5
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH