Preferably, {HEAD ~ the contact spring part} is approximately the length of the rear section of {TAIL ~ the guide pin} to optimize the mechanical connection 
Preferably , { HEAD ~ the contact spring part } is approximately the length of the rear section of { TAIL ~ the guide pin } to optimize the mechanical connection
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH