Also, just so you know, the GC, is a fast growing bushy plant, (if you have a sativa heavy pheno) it's a good producer, The Trainwreck is a large plant, but a slow grower. I would think the TW would be over 3, and the GC would be 2,800-3,000. If it truly was "Medical herb" you wouldn't have your hands on it. This is how it works, someone grows green crack, and if your in Cali, you take it to a dispensary to donate overages. That's the only reason it's "Medical". I've seen dirt weed at dispensaries, so don't fall for that line. The real question is; Was it grown organically? Not that it makes a huge difference health wise (if there's been a proper flush), but 90% of the time, a person growing organically, really cares about what their doing. They might take a bit longer to get that weight, but the taste and smell, plus guaranteed lack of negative chems, are a big thumbs up, in my book. You need to tell your buddy to forget it, the next time he pulls out the, "this shit's better, so it cost's more" card.