what a great thread thanks for sharing all that figure maybe i could throw a couple ideas out here. i think the esters ether aldehydes ketones oxygenated terpenoids can still be found, but not in indoor inbred lines. the missing factor is the results of domestication.
terpenes esters even cannabinoids they all serve a purpose for the plant, a defense weapon usually against bugs fungi bacteria etc. while all plants produce a base set of
terpenes, an induced set also exists which becomes irrelevant inside. these are called induced oleoresins.
a good example is korean conifer trees and delta carene. a healthy pine has nearly 0 delta carene. however, upon attack by a pine wilt nematode, huge amounts of carene are released. now im not saying we have to infect our plants, but even inside we can mimic these relationships by using hormones or simulating insect attacks. methyl jasmonate is the alarm hormone plants use which is activated by an attack, and in turn activates these oleoresins. chitin is a ground up mix of beetle shells and insides. when a plant root system comes in contact, they think an attack is happening, increase their hormone alarm and release oleoresin. both of these ingredients are safe to use and fairly inexpensive.
i think its interesting that rks was seen alot in the uncle fester sk18, which was torture tested to become a pest resistant line. to make it bulletproof it was intentionally infected/attacked/neglected by the breeders. now this brings me to concepts like epigenetics and methylation. these are adjustments to regulation of genes which are inheritable, but also have an on/off component. they also dont show up in dna tests. instead they work thru gene and synthase transcription. basically a sort of memory or switch board for the plants defense system.
in the 60s regardless of the line, many p1 plants were very generationally close to their home/adapted environment whether that be feral or farmed. since these epigenetics and hormone alarms can be inherited the first few generations would continue to act as it normally would. but either due to a milder climate or a trip inside, the plants would slowly silence or adjust these switches to the muted forms we see today. now trainwreck i believe was built with a lowland thai which comes from a harsh environment. so it makes sense that they would be keyed up to provide those amazing qualities you described. one thing i like to do is search for different uses the plant has for certain aromatic elements, like the carene example. sulfur compounds, amines etc are probly a big piece of the puzzle. with all the access we have to different heirlooms, landraces it could be helpful to infuse certain stinky lines into domesticated lines with potential, to awaken their wild side. so thanks for all the great info!!