I don't know how extensive the research of those who say "DCK isn't psychedelic" really goes. I definitely disagree. DCK is definitely psychedelic for me, but not at all in the same way that tryptamines or DXM are/were, respectively. Tryptamines overlay reality, add to it, even replace it entirely at high doses, but DCK doesn't do things in the same way for me. The psychedelia I get from DCK is nonexistent when my eyes are open and I'm watching TV, and only when I stop doing things and lie down with my eyes closed or begin to meditate (music optional) does the psychedelic state 'present' itself to me, and that's really what it does.
I'm hypersensitive to almost all of the psychedelics from every class that I've ever taken but I don't know how or how much this relates to my DCK experiences. I've done DCK in increasing doses and I was beginning to want to give up on it because it was only making me feel anesthetized along with that strange drunk-ish feeling, and that wasn't fun or enjoyable for me after the first time (I hate alcohol,) but on my most recent go with it I discovered how to get there purely by accident. I got so tired of the anesthetic/drunk-y feeling that I wanted to take a klonopin and go to sleep. Ultimately, I decided against the klonopin as I was tired already and had been high on a relatively mild dose of DCK for several hours by then, so I went in my room, got in bed, turned on my pandora radio and put my eyeshades on to sleep, then suddenly, out of nowhere, there it was, just waiting for me to discover how to get there. I was watching these crazy psychedelic scenarios playing out in my mind, kind of like strange, trippy dreams but far more colorful than any of my dreams ever are (I only dream in black and white because of severe lifelong endogenous depression.) It wasn't your typical closed-eye visuals, though it was very much like a dream state and I kept opening my eyes to confirm that I was still awake and wasn't simply dreaming. I couldn't get to sleep for around two hours and I just lay there the whole time watching these crazy dream scenarios play out in my mind, changing completely each time the music would change, each one becoming a new adventure of the mind. I got that familiar, indescribable "psychedelic feeling" emotion as well and it almost became dysphoric at one point as I began to realize some problems I've been having. Then all the insights into life that I've been hoping for began to hit me. The introspection was honest and deep and I began to analyze all the things I've been doing- my thought patterns, which of them are working for me and which are not, and I realized some very important changes I needed to make in my life ASAP and so far those changes have served me very, very well so I know this psychedelia was the real deal. Up until then DCK has honestly been kind of boring and unenjoyable for me because I've been sitting up watching documentaries and doing things I'd do on tryptamines or things I would have done on DXM, just hoping for some visual distortions beyond the light dissociation I reached, but the psychedelia from this drug just isn't like those drugs. It required me to stop doing other things, lie down, and devote my attention to my mind in order to get the effects I waned, but once I did that it all showed up for me "wearing bells," as they say.
If you've given up on this one, perhaps it's worth one more shot. It's not like the classical psychedelics or anything else I've tried, but it definitely had its merits and it was very, very rewarding. I'd suggest trying this after taking a good dose either sublingual or insufflated. When it hits just lie down and focus your attention inward. Pay attention to your thoughts and let the mental images come to you naturally. If it's light out, use eyeshades. The morning light prevented depth for me and the eyeshades were the only reason I discovered this effects it had on me. It definitely worked for me and it was extremely introspective and rewarding once I started making room in my mind and in my field of attention for the experience to manifest itself. Any time I opened my eyes it would immediately pull me out of that zone and even the feeling of psychedelia would dissipate quickly, but when I closed my eyes again I would sink right back into the trip. This one definitely goes hand-in-hand so beautifully with meditation.