A few days ago someone posted about EC results from one of Petch's 100µg Hoffman blotters.
https://www.reddit.com/r/DarkNetMarkets/comments/5ye1bf/lab_results_spaceyelf_dmt_petch_lsd_and_mahakala/ The results were unexpected, 180µg.
I messaged him on AB to see if he had an explanation. here's his reply; (slightly edited to be a self-contained statement rather than an answer)
I was made aware of this EC test as a buyer copy and pasted it to me.
He could have done an average from at least three tabs for a more accurate overall percentage of my tabs. I think i got a little lucky there, as most of my tabs are over dosed but not by that much!
100ug comes in at 110-130ug on average is what i would expect to find, as i use the wash from the previous lay and also add some extra crystal on top of the required amount, where most vendors won't do that because it's a lost 1/2k extra in profits.
When laying the acid i use a needle, two drops per tab, yes it's laborious work, and sometimes i accidentally drop a third drop on there and can almost double the dosage, i see that as a lucky dip to whoever gets it, but most the majority of the tabs would not have been 180ug, but about 120ug
Following this, I asked him about his Kesey tabs
Similar variance on the kesey, as i do the exact same thing, 125's probably come in at 150ug, but again i've never had them tested myself with an EC test, and some times another factor that can come in to play is the lsd itself can vary in potency, so i may get xtal from my supplier that's 99% pure, but then the next batch it could 94% pure, which also has an overall effect on strength of the blotter, which is tricky for vendors if the supplier doesn't tell then what the purity of the crystal is...so i started adding extra crystal on top just in case the crystal wasn't as pure as before.
Some vendors that lay acid do their calculations for the lsd solution based on the crystal being 100% pure, and this is rarely the case, so their calculations for the strength of the liquid solution is normal off, and underdosed, but depending on the purity of the crystal that can be noticeable or hardly at all.
p.s. Hi future people searching the sub to check if Petch is legit! Spoiler: he is, despite nobody posting about his stuff on here.
while i'd generally be happy about overdosed tabs, this strikes me as somewhat dangerous for inexperienced trippers