The receptacle installs flush to {HEAD ~ the surface} of the surfboard without the need for angle adjustments like {TAIL ~ most systems} 
The receptacle installs flush to { HEAD ~ the surface } of the surfboard without the need for angle adjustments like { TAIL ~ most systems }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL