In {HEAD ~ one aspect}, {TAIL ~ the second deformed surface portion} has a second peak surface point offset from the second substantially planar surface, and the distance between the first peak surface point and the second peak surface point defines the second thickness greater than the first thickness 
In { HEAD ~ one aspect } , { TAIL ~ the second deformed surface portion } has a second peak surface point offset from the second substantially planar surface , and the distance between the first peak surface point and the second peak surface point defines the second thickness greater than the first thickness
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH