using the tested angular difference between {HEAD ~ the first test toe angle} and the second test toe angle to determine whether the tested angular difference is within {TAIL ~ the alignment range} 
using the tested angular difference between { HEAD ~ the first test toe angle } and the second test toe angle to determine whether the tested angular difference is within { TAIL ~ the alignment range }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL