I came across this paper a few months ago, it’s definitely intriguing. I’ve yet to test it out indoors, but I did a guerilla grow outdoors over a decade ago during a particularly bad drought year, and while the end product was subpar in some regards (almost entirely due to a terrible approach to drying/trimming), it was incredibly potent.
It should be noted that this study only tested strains that the researchers refer to as “chemotype 2”, or something similar - basically strains with roughly equal ratios of thc and cbd, usually low-to-medium amounts of both. There’s no reason to think that one wouldn’t get similar results in thc-dominant strains though, since this phenomenon occurs in many varieties of resin/oil producing plants, like rosemary, since the resin/oil acts as a protective barrier for the plant.
As an aside, it makes me soooo happy that there’s finally professional, empirical research being done on cannabis cultivation. It’s so frustrating to have every conversation around best practices be based around ideas that are complete speculation at best.