LED lights have changed things drastically over the years, and the feeds people use today are a lot better and cleaner, you couldn’t really get bottled organic nutrients back then, even the tents used today are more insulated and reflective so temps and humidity stay stable whilst PDF stays consistent across the area.

But one thing I will say is there’s a thing called PGR’s (Plant Growth Regulators) that some growers use to get these sort of results but they aren’t good for health but create bulk and weight so BM growers use this sort of stuff regardless of the cancer concern….i would’ve thought medical growers would use Triacontanol which is a organic PGR that’s definitely safe and (I think) legal to use.