Here is what is in Kimber manual about the half cocked position on page 17. They recommend against it.
HAMMER SAFETY STOP
The hammer safety stop is a notch on the
hammer which prevents it from falling fully forward
in the event of primary sear notch failure. It also
prevents fingers slip from the slide or hammer
while cocking the pistol, provided the hammer has
been moved past the stop. The safety stop is not
a manual safety! Do not under any circumstances
use the safety stop as a “half cock” position. This
misuse can result in damage to the sear, and/or
unintentional discharge of the pistol. The safety
stop position is an automatically engaging safety
feature and should never be engaged by hand!