It seems a lot of you are doing it wrong & missing the point with this, expecting effects that aren't there & missing the fact this is an amazing functional psychedelic - it has a single specific function, sex. It wont get you really high or give any interesting visuals, it could be dangerous to try higher doses or smoking it looking for that & you wont really get much from this.
At around 20mg oral, on top of a moderate dose of a proper psychedelic/stimulant, I've tried it with bk-2c-b, probably a low to moderate dose of 2CB or MDMA would work too, it's the ideal sex drug. If you don't have a sexual partner there doesn't seem to be much point in doing this drug. If you do, it's possibly the greatest drug ever.
The powder I got was pure white & sparkly, it's a fine powder, but seems to clump slightly & it sparkles under light. It's quite dense & clumps together easily, so please make sure you measure your doses. Effects of the substance I got seem to be as most people describe them. I had 2 doses at around 20mg each (measured, but bad scales), once before bk-2c-b & once when I'd plateaued from a moderate 120mg bk-2c-b dose. Little or no visuals (slight fishbowl effect), little euphoria, pleasant body feeling (may turn bad at higher doses), a clear slightly psychedelic head, almost like a powerful nootropic, so the first dose seemed pretty pointless, maybe a bit more powerful than a heroic dose of noopept. Hours later, when it had totally worn off & I'd plateaued off the bk-2c-b my second 20mg dose of 5-meo-dalt seemed to reduce or even totally remove the light visuals I was getting from the bk-2c-b, gave me a much clearer head & pretty much made me feel like superman, amazing sexual effects, everything you could ask for if you want a few hours of hard sex. Re-dosing & tolerance don't seem to be a problem, so you can keep the effects going for longer.
It's an amazing drug if you do it properly, use a small dose in combination with something else & have sex, but it'll be disappointing if you're looking for typical psychedelic effects, they're not there.
You have to understand Shulgin was a bit of an old hippy & looking for the ideal sex drug, he seems to have found it.
It also seems to combine well with standard doses of noopept & ginkgo, gingko may help with any vasoconstriction. Cannabis works well with it too. This is just a drug for wild drug fuelled sex.