The insert provides {HEAD ~ the means} for {TAIL ~ numerous adjustments}: forward and backward in the slot, cant or fin tilt angle by changing the insert, and different fin types 
The insert provides { HEAD ~ the means } for { TAIL ~ numerous adjustments } : forward and backward in the slot , ca nt or fin tilt angle by changing the insert , and different fin types
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH