{TAIL ~ elastomeric mats} of exhibiting different stiffnesses are color coded based on stiffness to allow visual confirmation that a mat of the correct stiffness is installed in {HEAD ~ a given sensor} 
{ TAIL ~ elastomeric mats } of exhibiting different stiffnesses are color coded based on stiffness to allow visual confirmation that a mat of the correct stiffness is installed in { HEAD ~ a given sensor }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD