Also, (after unloading revolver), you gently cup the revolver in non-firing hand on bottom of trigger guard, and fold thumb on left side of the cylinder and two or more fingers gently on the right side of the cylinder. Smoothly cycle and release through all six (or five) cycles. Hard to explain, but you can FEEL with your finger tips if timing of one cycle is "hinky". As others have noted, this does not show up on several other tests.
"Soylent Green is GLUTEN"!