{TAIL ~ A new stage velocity} can be determined by multiplying {HEAD ~ the current stage velocity} by the factor or by subtracting a predetermined velocity increment from the current velocity 
{ TAIL ~ A new stage velocity } can be determined by multiplying { HEAD ~ the current stage velocity } by the factor or by subtracting a predetermined velocity increment from the current velocity
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH