The whole point is to expand the mycelium in the cheapest, fastest and safest way possible.
Now, there is no better way than monoculture. This means you can Taylor all your methods to a single "phenotype".
The organism will fruit in predictable ways and for a predictable number of flushes.
You also want the entire system to yield its entire potential in the fewest number of flushes.
You want to get away from sterility as quickly as possible because sterility is the antithesis of "natural".
The more exotic the mixtures the more difficult you make it for no real reason.
Check your variables.
Light
Moisture
Temperature
Ph
Ph is the most under managed but is the key to ongoing successful large scale grows.
Manipulation of light is more important than anything but ph.
Anyone, ANYONE can grow a large amount of this species.... once or twice.
The skill is in being able to repeat the process ongoingly.
So, moving steadily from a mere few strands of mycelium to a usable spawn to a large amount of a specific lot of a general bulk material and initiating fruiting conditions as quickly as possible is how it all works together.
Orchestrating that pinning sequence is how you get the very highest yield in the shortest time with the least amount of energy or money expended.
Straw and or straw manure mixes are the most efficient with cubes, bar none.
Substrate depths of 8 to 12 inches are optimum but they carry huge risks that must be managed.
With this combination and judicious use of water crystals, one can get the most on a per square foot (not cubic foot as surface area is all that growers are really concerned with).
In this way you can completely expend the nutrients in the substrate in two flushes. Then the spent substrate is turned out and the process is repeated. This means the substrate and casing never gets to an acidic state. If it never gets to a stage that enables trich growth, no contamination occurs.
The species doesn't really care about continuing fresh air, so long as there is no stagnant air and the co2 levels never get beyond 5000 ppm, fruit will be abundant. Good lighting will encourage dense pin sets and deep nutritional availability will guarantee few if any aborts.
Bags, jars, bins, trays, buckets, these are non essentials. People get hung up with the mechanics, they never have to with this species.