{HEAD ~ The controller} 52 can include an algorithm to process {TAIL ~ the input} to achieve a weighted average 
{ HEAD ~ The controller } 52 can include an algorithm to process { TAIL ~ the input } to achieve a weighted average
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH