Re:  When it comes to using torque wrenches there are a number of factors
that need to be considered for successful use ...  (Dennis)

Dennis, you've repeated the old-time "legends" regarding torque wrenches.

If you have a modern German Stahlwille torque wrench--the kind available
through the VW and Mercedes parts systems-- the following DO NOT apply.

1.  You may freely use your Stahlwille clicker torque wrench for loosening
fasteners, as the torque measuring action only occurs in one direction.
Should you encounter left-handed threads, you simply remove the detachable
ratchet head and turn it around.

2.  There is NO need to reset the Stahlwille clicker wrench to zero when
storing it.

Just like just about everything else, the Germans do torque wrenches better.
And you pay for it, of course.

Kent Christensen
Albuquerque
'81 Vanagon
'01 Porsche Boxster
'07 Merc GL320CDI
3 BMW motorcycles