{TAIL ~ The amount} of current shunted is determined by the highest voltage level of {HEAD ~ the control buses} 30a a 
{ TAIL ~ The amount } of current shunted is determined by the highest voltage level of { HEAD ~ the control buses } 30a a
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH