Most pistols should not be allowed to let the slide slam forward on an empty chamber.
When a pistol is functioning correctly, the slide normally slams forward loading another round.
This is when the trigger is held to the most rearward position (which "locks" the works in position).
Allowing the slide to slam forward on an empty chamber is normally done with the finger off the trigger (and the internals are not "locked" in place).
After fixing numerous 1911's that have been so treated by overzealous gun pushers in sports stores, I believe it is a bad idea and a bad habit one should not get into.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
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