I found 20 mg 4-HO-DiPT having a great feeling and trip, but lacking seriously interesting things. But ketamine spiced that up. Though all in all I was surprised by the number of positive effects while lacking negative, and the bodyload was enjoyable.
4-HO-MiPT (20 mg was it?) was a fluke for me. It wasn't much of anything and when I did get things like CEVs they were not consequent at all, one time it's like being in a Betty Boop black and white cartoon and the next its a vision of a modern mall getting flooded with a tsunami of saffron-yellow spice or powder for no reason or without significance. Quite interesting yes, but I wasn't sure at all where I stood with the substance. And the nausea didn't help either.
around 35 mg 4-AcO-MiPT on the other hand was very different. Like 4-AcO-DMT the transitions were incredibly smooth and hanging out in a sunny park trying to read a book and listen to music was nice and produced patterns although not very colourful or compelling. I enjoyed the day and would definitely be inclined to take it again, but I would be hard-pressed to call it special. There was the purported euphoria though, like I said I enjoyed myself but nothing like being ecstatic or giddy, just plain good and nice. Easy.
4-HO-MET is a gem, I forget the dose. I thought with the other tryptamines like 4-HO-DiPT there was little bodyload but this was even better, holy shit. And there were absolutely stunning visuals and my god! The colors! This one is a total keeper. There was nothing of the seriousness of mushrooms present nor weirdness or strange thoughts. There was a psychological trip though and it was just clear and of good quality. A+ but I was not transported to another world. The dose wouldn't allow that though.
Then there's 4-AcO-DMT (at 20 mg or a bit above) which is fantastic and deep while having a smooth and softly carrying overtone. But close your eyes for a few seconds and there are DMT elves hopping around in non-Euclidean geometry. This stuff is spiritual and very valuable, but it might be easy to underestimate if you focus too much on the smooth surface layer. Never forget the mythical and archetypal fairy-tales taking over the décor of your deeper mind. Keep in touch with yourself and it will reward you plenty. There is richness not often paralleled, like a stretched out N,N-DMT trip with less roughness or overdrive speed.
They mostly all so worthwhile and have the capacity to do so much, that makes it so hard to see a general comparison let alone conclude from it a certain metabolism. Consider them all separate and unique, even if there are elements that remind you of other tryptamines - sometimes not even that closely related.
The title of the thread says otherwise but the main comparison to draw is that 4-AcO's have longer and smoother transitions while 4-HO's are more acute. But where 4-AcO's have totally doable bodyloads, the 4-HO's excell and feel transparant and clear. I would say even better than some acid, but probably not better than topgrade liquid L.