Simply in terms of manageability of handling the process, it's better just to stick to the size range that you've already used. The main problem, besides the difficulty of handling large volumes of extraction materials, is that volume scales as the cube while surface area only scales as the square.
Also, please take the following section of the Attitude Page into consideration:
The Attitude wrote:No commercial-scaled extractions and reckless “spreading”
The Nexus is not a place for commercial operations and we do not want to support drug dealers; we believe in using these substances for personal use.
If and when sharing these substances, we believe that it has to be done without money or other payments involved, with a careful approach and care when facilitating the introduction and/or experience of others.
It is imperative to take care that the person ingesting has no contraindicating medical/psychological history, takes it in a proper set and setting, and correct dosage/method of ingestion. This cannot be done if the substances are spread on a large scale. We do not want to "turn on the world", those who are ready will seek it. Indiscriminate spreading of psychedelics can lead to potential serious damage to people and is a big legal liability. Big extractions (and the preparations leading to it and gathering of materials) can attract the attention of the Law.
Spreading of the message of psychedelics itself through superficial YouTube videos showing use or extractions can also cause a lot of damage to the community (as happened with salvia) and is frowned upon.
“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position vis-à-vis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work."
― Jacques Bergier, quoting Fulcanelli