2C-D is definitely up there for me, when we took this substance on the Mt. Caribou trail, Rainbow Lakes area in Indian Peaks, Co it was a very interesting as the come up in my experience was (as much as I'd hate to relate the two completely different chemicals) very similar to that of LSD.
Almost viewing everything in a very objective sense, as though i was outside of myself (in a more positive connotation), fresh and new canvas. Unlike LSD, 2C-D was super malleable, but the come up was very pushy, and very "in the head", reviewing things, not so much analysing and picking apart. I feel it very important to psychotherapeutic studies.
As usual with other phenethylamines the ease on my body was astounding, however just like my experiences with 2C-I, my mucus membranes seem to go a little nuts, not as bad, less tearing of the eyes, more sinus reaction, but MUCH more tolerable than 2C-I.
However I did have visuals that were so very natural to the setting in that I was even unaware of them, lots of pastels!
I saw this rock at our campsite that was painted with pastel (somewhat florescent) pink, green, yellow, and blue, that it influenced my visuals.
Going up this hill trickled with loads of granite stones marked with pastels, arriving back at the campsite from climbing up the moutain I made the comment, "HEY that rock looks like the other ones on the mountain", and received a nice smile from MGS saying it was painted.. What a woops, im trippin'. Anyone that demeans the mightiness of 2C-D, well number one their just jealous, and number two.. they are missing out!!
I find 2C-D had a subtle sophistication then compared to 2C-B, in that a potential for cognitive relation to the substance was so very apparent.