This makes it easier for {TAIL ~ a user} to localize errors which, on the other hand, results in a reduction in {HEAD ~ stoppage times} 
This makes it easier for { TAIL ~ a user } to localize errors which , on the other hand , results in a reduction in { HEAD ~ stoppage times }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD