Robert,
We always Inspected and Maintained guns, and when time to clean, we cleaned.
We always shot the shotgun, to insure function, and I mean more than just a round or two, at least a box, and then left it alone.
Here is what happens. Especially with new shooters.
They mess with the gun too much being nervous, apprehensive, and exited about the Shooting event, even just hunting.
Mistakes happen, they get a part in wrong, gas system incorrect, forget the "O" Ring, or mess up the gun, being in a frantic hurry, use improper tools or technique and lose a part, break something or you name it.
I was raised Shooting is 90% Mental, and 10% Physical.
Akin to todays Software Not Hardware .
Physical : Gun , Loads, Shooting Glasses, Ears, shell pouch/vest, shoes, etc.
One has gotten the correct basic fundamentals and continued quality practice.
The Physical stuff, like Gun Fit, Loads Patterned, and everything else "fits", tested, investigated, verified, and this Physical Stuff, everything is Fit.
One this Physical is done. Do Not Mess With It !
Now the Mental Game, Mindset, Focus, Game Face, whatever one chooses to call it, is FREE to do what it does.
Do NOT use up some of that Mental 90%, messing with Physical stuff, one needs all the Mental they can, to be effective. Skeet, Trap, 3 gun, whatever shotgun use they are participating in.
If I have seen it once, I have a thousand times.
Shooter messes with a gun, the night before and maybe again the morning of.
Nervous, overwhelmed, whatever...and forgets lets say to put the gas system in correct order, or the "O" ring.
Steps out on Station 1, and the gun will not run. IF it shoots once and breaks the high house, IF it fires again and breaks the low bird, - maybe so.
Now the doubles at Station 1 and the Gun will NOT shoot the second shot.
Shooter gets rattled, Mental game is being messed with.
"First bird dead, repeat the double" Puller/RO calls out.
Meaning he /she does have to break the first bird, but they do have to break the second bird with this "malf".
Gun did not shoot the second time again. With finger holding trigger back, as rules state, RO comes over and verifies a Gun Malf.
Now the person has to get another gun, fix that one, squad is being held up, they dropped a bird and the Mental Game is continuing to unravel.
Does that sense and explain the reasoning?
Mental Game is a huge part of shooting. It too requires Correct Basic Fundamentals, Quality Instruction and Continued Quality Practice and Implementation.
Skeet Field and the stupid birds are wet, the machine is acting up and and...
Seasoned Shooter will deal with this and not let this "distraction" rattle them.
New Shooter will simply not have the experience level yet , and this can /does frustrate them, and when problem fixed, or move to another field, the Mental Game is still off, and they shoot poorly.
Some will not shoot in the rain, wind, cool/cold temps. Fair Weather they are fine, still the Mental Game of "getting the gun wet" , or "rain on shooting glasses" totally messes up their abiltity to do well.
Sticking with Skeet:
Easier part is just shooting 100/100 for the Big Boys and Girls.
The Competition is the Shoot off at the end of the day against like shooters that also ran 100/100.
If one shoots all 4 gauges, most times this means shooting two gauges in the same day.
So if one shoots 100/100 in both events, the easier part, that means TWO shoot offs at the end of the day.
One has to wait, long day , hot, Mosquitoes come out at dark, and OFTEN these shoot offs are under the lights, as darkness comes fast, trying to get all the shoot offs out of the way.
Mosquitoes buzzing and biting, white targets under lights instead of orange during the day. Some of these other folks "won't miss"
and not uncommon to have shot 2, 3, 4 and I have shot 5 boxes in a shootoff, and it was almost 11pm when we finished.
Next morning, got the early shoot time, and that damn sun is in one's eyes on some stations...
Inclement Weather: Oh yeah, I ain't got good sense. Rain, sleet, snow, tornadoes, cold...
Gun has to get cleaned that night. I and others like idiots broke them down, dried, cleaned lube and at 11pm outside somewhere, shooting a couple of boxes , to shoot these guns the next day again.
Thank goodness for barns and sheds, as I /we have fired guns from inside to outside in dark weather to Dirty a gun , before we run the gun the next day.
WE had backup guns...we tried to keep them as were, and not used.
Murphy's Law and all that.
Some of my Mentors shot for serious prizes and all. Some might call them Hustlers.
"You did clean that gun now didn't you?"
"Nice gun, bet it shoots great, and you are going to give me a run for the money, is that a scratch I see?
I bet that gun runs better clean and with fresh lube, got a kit on the porch, help yourself".
Mental Game - Mentors taught me what they taught me.
I mean nobody said one could *not* mess with another's Mental Game.
"That gun is flithy!"
"Those reloads, got tape and wax to keep pellets in!"
"Lookee there, he/she is fumbling so, just trying to get shells in a pouch".
"Oh MY! Look at that black crap coming off that shotgun, 1911, ....does he/she never clean the thing?".
Run 'em [tm]