So I am curious, who practices malfunctions? How do you simulate them?
When the pistol fails to fire:
1. Perform Tap, Roll & Rack, Recover.
2. If Tap, Roll & Rack, Recover fails to get the pistol running then:
3. Attempt to perform a Combat Reload.
4. If you can't insert the fresh magazine into the pistol then:
5. You put the spare magazine between your ring & pinky finger, lock the slide open, rip the "depleted" magazine from the pistol, cycle the slide three times and then finish the Combat Reload.
I always operate the slide the same way - I retract and release it using the overhand method. This simplifies OODA Loop decision-making. It uses the same movements for every problem. I don't touch the slide lock unless I want to lock the slide open to unload the pistol or to clear a doublefeed - that's it.
I don't attempt to diagnose that I've fired the gun to slide lock because there are failures that will look and feel like the slide is locked open (stovepipe, in-line stovepipe, failure to feed, and doublefeed. In addition clearing a classic stovepipe using "tap/rack" will frequently induce a doublefeed). When you try to diagnose what caused a stoppage then you aren't going to be as quick in getting the gun back up and running because you're Observing-Orienting-Deciding-Acting instead of performing non-diagnostic Observe-Act immediate actions.
Tap-rack takes about a second to perform. It's performed automatically anytime the pistol does not fire when you press the trigger.
If tap-rack fails to get the pistol running then, unless you're in a safe position, you should be reacting/moving to keep from being shot, stabbed, bludgeoned, etc., before you attempt a Combat Reload. Reacting to danger under these circumstances offsets any perceived advantage in "speed".
If you train to immediately perform a Combat Reload when you "see" that your slide appears locked open then you become preoccupied in diagnosing and reacting to your gun at the expense of reacting to the danger. If you've incorrectly "observed & oriented" and the problem is not an empty magazine then your OODA Loop resets and you have to decide what to do next while you're still exposed to danger.
Whereas if Tap-Rack fails to get the gun running then you simply progress to the next decision - react/move or Combat Reload.
I also load & unload my pistol using the same movements that I use to clear stoppages. The movements I use to load & unload are common to the movements I use to clear stoppages. I use the tasks of load & unloading as a training opportunity to exercise the same movements I use to clear stoppages. This allows me to leverage economy of motion.
When I load I put the slide into battery*, seat the magazine, and roll & rack. I then perform a Tactical Reload, holster my pistol, top off the magazine I removed during the Tactical Reload and stow it in my carrier. (*I put the slide into battery to condition me to apply the extra effort required to seat the magazine after I clear a doublefeed - a situation in which the slide will be in battery after I clear it.)
When I unload I remove the magazine; place it between the ring & pinky fingers of my firing hand; roll, rack & lock open the slide (just as I do to clear a doublefeed).
---------------
What if the slide lock disengages and the slide unexpectedly goes into battery after seating a magazine when performing a Combat Reload? Simple - I just drive-on and Roll & Rack as I normally do. It may cost me a cartridge but it is a positive measure to ensure the pistol is ready to fire when I need it. It eliminates OODA Loop reset hesitation and decision-making caused by an unexpected event, and I can get back into the fight quicker.
After "Tap", I simultaneously "Roll" the pistol to the right about 90-degrees at the same time I "Rack". This allows me to use centifugal force and gravity to help clear the action. When I "Rack" I also simultaneously retract the slide with my support hand and push forcibly forward with my firing hand - as if I'm trying to rip the slide off the frame. When the slide reaches its rearmost travel and stops my support hand just slips off.
---------------
Tap, Roll & Rack takes about a second to perform. It clears the most common stoppages. You should train so that you instantly perform Tap, Roll & Rack as a conditioned response if the pistol doesn't fire when you press the trigger. Diagnosing that you should first attempt a Combat Reload slows you down and increases your vulnerability. Diagnostic techniques suck your attention into trying to solve the "internal" gun problem at the expense of diverting your attention from the more important "external" tactical problem. If you're focused on the gun then you're not paying attention to the danger. Immediately performing Tap, Roll & Rack does not draw your attention into the gun. It's performed automatically. If it doesn't get the gun running, then you're free to immediately do what you have to do next to keep from being harmed and defer the Combat Reload until time and conditions permit, if necessary. Whereas if you attempt to perform a Combat Reload first - you're "down" and distracted for a longer amount of time - especially if you misdiagnose the problem and get sucked into fixing your pistol while one hand is holding a jammed gun and the other is holding a magazine.
Physical fatigue and injuries increase the probability of experiencing a stoppage during a fight.
-------------------
INSERTING STOPPAGES FOR TRAINING
At the range:
I randomly load a dummy cartridge in every magazine to thoroughly ingrain "Tap, Rack" manipulations when the pistol doesn't fire after I press the trigger. I also don’t load my magazines to full capacity (usually 5-7 rounds) when I’m training so I can maximize the opportunity to exercise my manipulation skills.
I routinely insert a doublefeed stoppage, which is the most time consuming to clear. I place a fired case in the chamber, seat a magazine, retract and release the slide to put it into "battery". This jams the top cartridge in the magazine into the head of the chambered case. I "simulate" firing the pistol by pressing the trigger. When the pistol doesn't fire I perform all the nondiagnostic immediate actions I described above.
I also chamber a cartridge, holster my pistol and then press the magazine release to unseat the magazine. I then draw my pistol and press the trigger. The pistol fires but fails to strip and chamber a cartridge from the magazine when the slide cycles, producing a "one shot wonder". When it doesn't fire I immediately perform "Tap, Rack" to get the gun running again.
In addition I'll insert a stovepipe or in-line stovepipe stoppage with an empty case and perform "Tap, Rack" when the pistol doesn't fire. Sometimes this produces a double-feed.
When the slide locks open on an empty magazine I still perform "Tap, Rack" first, attempt to fire again, and then progress to a Combat Reload. Although I may feel a difference in how much the slide retracts when I perform "Tap, Rack" as my primary immediate action, I don't know if the problem is caused by an empty magazine, an in-line stovepipe, a doublefeed, or an unusual feed/extract failure as they all feel about the same. However it simply doesn't matter what the problem is - I just progress through my immediate actions until I clear the stoppage. I maintain my tempo of non-diagnostic manipulations - and this practice is where my quickness in clearing stoppages comes from. I just drive-on - without skipping a beat.
At home:
I do the same things except ONLY with dummy cartridges. I don't need to go to the range to exercise and maintain my manipulation skills.