Katz 206 said: i dont want to start an argument or anything, but lets be honest... these numbers are being inflated. your not gonna be seeing 30% almost 1/3 of the plant being THC. i never go by percents ever. i dont want to outright say they are faking their numbers, i dont want to outright say some places are faking "pesticide free" either. but your not required to test the entire batch, i have heard some places will have 1 plant they dont use pesticides on and have that one tested but use it on the rest of the crop for instance. i have no hard proof of this, its just what i think
that being said, im a huge bud snob and always want some dank that taste delicious. theres is clear differences in taste, and ive had weed tested at 17%ish get me just as high as something testing close to 30%, theres no real big difference at all if any. this is more evidence that leads me to believe numbers are bull shit.
edit: just thought of a question. say you have an orange or something picked off of the tree, and you test its sugar content and weight. then you take that same orange and dehydrate it. then you test its sugar content and weight. thats the only phenomena that can explain numbers near 30% imo, i mean that almost 50% bud looks pretty fucking lit but id feel like a retard if i was selling that at the farmers market back in the day trying to convince people my shit was testing that high lol. i remember people being called out all the time for even saying they had weed tested in the high 20's. people would tend to call them out but maybe thats just cause they are trying to finesse a better price 
What I've heard with pesticide testing at least here in Oregon is that shady people will look up what they test for and just use something else... So they don't even have to bother growing a "pesticide free" plant. It also means they can literally douse their crops in pesticides right before cutting down and they still won't get tested for... Who knows how common it is but sadly I'd wager it is at least more common then people realize. Thankfully testing will be improved over time.
Also I agree with the THC %, at the very least I doubt they are totally accurate. Some places could absolutely be lying/making them up as well, or getting paid to inflate the % for some crops. Wouldn't be surprising at all IMO.
Necropolis said: Sounds like there may be a simple solution to this. Most trichomes can be mechanically separated from the plants flowers, especially when the plant is cold and the trichomes become brittle. Since THC is sticky/viscous and not the easiest thing to handle, and we know the majority of THC ends up in the end of the trichome heads, try this:
Sift the majority of trichome heads out from a known weight of flowers. Myself and a lot of other people here have microscopes so this shouldn't be difficult.
Once the trichome heads are removed, weigh the flowers that are left over. Account for the small percentage of THC that is still going to be in the trichome stems and other parts of the plants. I seriously doubt you're going to find that any of those strains has anywhere near 20% of the flower weight being trichome heads. And remember, the trichome heads aren't just THC, so if you remove most of them, and it still doesn't add up to 20% of the weight of the flowers, you've found your answer.
EDIT: 
Quote: The vast majority of THC is found on structural components within the secretory cavity, particularly the wall, fibrous matrix, and surface features of vesicles. This suggests THC may be chemically bound to these structural components rather than being free in the cavity.
That's a rather small part of the plant where most of the THC is found. Like I said, if you don't find 20% of the weight of flowers being removed when trichome heads are removed, there is no way the flowers are 20% THC by weight.
EDIT: To put it in perspective, showing how much more THC you'll find in a small part at the end of the trichome heads compared with the rest of the plant:
Quote: We also separated them as to glands over a vein as contrasted to non-vein areas. Results showed that stalked glands over a vein on the bract contained more THC content, approximately 20 times more, than the sessile glands over a leaf vein. Similarly, stalked glands over a non-vein area contained much more THC than sessile glands over the leaf non-vein area.
They used low THC strains, but it doesn't change the ratio. You're still going to end up with a lot more THC in the glands/end of trichomes compared with the rest of the plant.
http://www.hempreport.com/issues/17/malbody17.html
Would be interesting to see this tested with bubble hash or BHO. Like you said you'd be extracting more then just the THC but it could still give a more accurate % for the amount of cannabinoids & terpenes.
To really get the THC % I think you'd need to extract the bud down to pure THC and weigh up the difference. But THC extraction is still a pretty involved process.
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