Speaking from some experience with it here (into 3rd week on the bottle, and used for about 2 weeks in testing phase), I really never did get used to it like I did with other stimulants. I'm pretty tolerant to most stims. Ok, I'm a junkie, what can I say?
But so far, no dimished effects from SX at the same dose I started with.
Glad to hear that you liked it so far. How much did you take and when did you take it? We always say to start with just 1 in the morning and that's it. It's one bit of advice that everyone really really really should take. Taking more won't necessarily make you fly to the moon, but you'll be awake long enough to see it a few times this week, study it in depth, sketch it perfectly, write a 98 page essay on the topic of lunar illumination, tattoo yourself with a picture of the moon, and moon your next door neighbor before you fall asleep. (No, not that neighbor, the old lady on the other side of the house....)
Point is, it lasts. More lasts longer. Careful!!!
