I have tried this combo once before, about 10 hours into the LSD session. The effects were minimal, all it did was keep me awake, no euphoria or typical effects from amphetamines. I thought it might be a DOx since the amphetamine didn't have any effect, my reasoning for this was that I had taken a DOx which being an amphetamine, would cause dopamine depletion that would stop the effect of standard amphetamine. The day that I did this I actually ended up falling asleep less than 12 hours after taking the 70mg d-amp, which is not typical reaction one would have with amphs. I usually have to take a benzo to fall asleep when taking any amphs, however i was so exhausted by the end of the day (having been up for 24 hours on LSD), I fell asleep. I wonder if it was just my exhaustion that made me fall asleep because this is very unusual for someone who has taken any amphetamine.