There is an increasing requirement in todays designs to match length, time, {HEAD ~ resistance} and capacitance across {TAIL ~ nets} on a per layer basis 
There is an increasing requirement in todays designs to match length , time , { HEAD ~ resistance } and capacitance across { TAIL ~ nets } on a per layer basis
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH