Each of the offset keyslots is associated with one of the home position indices 142, 144 and 146 and is offset therefrom by {HEAD ~ the amount} of {TAIL ~ adjustment} required 
Each of the offset keyslots is associated with one of the home position indices 142 , 144 and 146 and is offset therefrom by { HEAD ~ the amount } of { TAIL ~ adjustment } required
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 REL TAIL TAIL TAIL TAIL TAIL OTH