I've noticed something similar if somewhat different too, Kougi. Basically it gets noticeably better after the first coupla doses that are usually a bit crappy for various reasons. Only get that effect with the off-white/beige variety though. The bright white speedy stuff starts speedy and stays speedy and the tan starts amazing and stays that way till it runs out. Really is odd stuff this off-white version.
Very weird mine is always: Unpleasant --> AWESOME -*3 days*-> STILL AWESOME, EVEN IF EVERYTHING IN MY PERIPHERAL VISION IS MOVING.
I also experience very little paranoia, even after being up for 4 days on it, no jumpiness, still at ease & relaxed, though, near the 5th day I was a little creeped out how little details on my wall were turning into small people...but I knew why, so wasn't bothered.
I really don't understand this whole tanned & white situation. How can there 3 drugs with very different effects, but all with exactly the same name? Surely each version should have its own name? Surely somebody has done tests on the versions to the exact chemical? I'd imagine a few people on this forum would know a few people inside the industry who know what's going on.
It just seems...absurd that still nobody knows what's going on with it after several months, especially seeing how much people loved the tan stuff - should be fighting to get it back.
Edit:
Oh god, just saw this post:
Hehe. Carpet patrol, table patrol, zipbag-patrol, gap-in-the-pocket-knife-patrol, smoking tube patrol, keyboard patrol ... - the list is long. And awful. :D
I can relate so much, I was even licking surfaces that I thought came into contact with the powder at some point, examing every single crevice. But worst of all - I currently have a cement floor & wall, quite crumbly too. I remembered getting some powder on it from stupid mistakes, like exhaling. I tell you, snorting a lot of white cement powder isn't too pleasant.