Hey peoples, for anyone who is still interested, I finally got an update from my friend who took the 40 mg of 4-HO-MPT.
Remember how I said that a delirious mania seemed right around the corner for me with 25 mg of this one?

It turns out what my friend was doing when he was lost in his head for that couple hours of silence was trying to convince himself that I wasn't Satan, but failing to do so. This friend is not religious in any way, and rarely has delusions of any kind from anything. But this time he said that he suddenly had a feeling that I (Satan) had come to him in human form to feed him drugs and convince him to come back to Hell to live at the side of my throne. He was in a bit of a quandary about it, thinking such thoughts as: "Well, I like drugs, so it would be cool if I just get to go do them forever, but what if it turns out to be a lie and I'm just stuck in Hell forever instead?" Part of the reason that he had such a hard time describing to me what he was going through then was because, well first of all he was majorly mindfucked, but second he wasn't really sure how to tell me that he thought I was Satan because he knew that if I
was then he would immediately reveal his knowledge and possibly make the whole thing even messier. Though, he apparently got a little more relaxed and lucid when I just left him to enjoy the trip, though he also took me leaving the rest of the nitrous as an affirmation of me wanting him to do drugs lol.
As I said before, please be careful with your dosages. :D I expect this friend to be able to handle these kinds of trips just fine, as he did. I would not expect it of a lot of other people though.