Please take no offense, but you start with a base assumption that these snakes are NOT adapted to their natural enviornment. Do you understand that?
You are under the false assumption that these snakes are better adapted to captivity and will produce more then the "NATURAL" conditions they are adapted too.
You see nature allows these animals a reproductive potential. That potential is used in nature, from one end, very low or no recruitment, to the high end, What you think captives are doing.
The reality is, a wild animal cannot produce more then its natural capabilities. Not with just the application of food and temps, what is normally used in captivity.
ALso, all attempts to induce/increase snake reproduction with the addition of steriods, as used with fish and frogs, has failed.
So all we can do in captivity to reach the upper areas of what is natural to them is, apply temps and food. Which are both totally natural.
By design, to little or too much of what is natural will cause failure, it will not cause their genetic limits to be exceeded.
Animals that have a long line of selection still cannot exceed their genetic limits.
So your assumption that a day in captivity will allow kingsnakes to exceed their genetic limits, for the benefit of a commerical breeder are very very very naive.
If i were you, I would ask myself why I think like you do. What reason do you have? are you animals not living up to those numbers? If not, so what!
You see, in nature, they have a range of success, you know from dying to multiclutching. From growing extremely fast to failure.
Even in the area of reproductive success, it can range from one egg or neonate, to many many from a single female in a single season.
Or not having the prey base to even support one neonate. Those are all normal.
what is funny is, some people choose the botton end of what is normal AND CALL THAT NORMAL. Others choose the top end and call that normal.
The actual point is, from death to extreme recruitment success is NORMAL.
As a intelligent keeper, you have the ability to choose which suits you best.
You can even change your mind if you want.
Unfortunately, the snakes, they have no choice, they can only do what their genetics allow.
So how about thinking of this in a realistic way, genetics. Then ask, what developed those genetics. For gods sake, no matter how much you feed a person, they do not triple clutch, thank god