Well, I finally tried LSZ. Myself and two friends (who we'll call G and M) went camping and each took 150 micrograms. We took our doses at 9:00PM, the blotter was held in our gums for approximately 15 minutes before being swallowed. What surprised me most was the duration of the come up. It took over two hours to really start tripping. About two and a half hours into the experience, I could tell we were peaking. Of the three of us, no one experienced any nausea or discomfort, nor was there vasoconstriction to any degree. Apart from the long and very gradual onset, we found it to be almost indistinguishable from LSD. This was M's first psychedelic experience, but G and I have done LSD dozens upon dozens of times. We both agreed that apart from onset and duration, it was almost an identical experience.
The major differences I was able to distinguish were:
Duration: It took over two hours to begin feeling effects- far longer than any time that I've used LSD, whether in blotter or liquid form. Also, the peak seemed to last about 5 full hours and tapered off very gradually.
Stimulation: It definitely seemed less stimulating than LSD usually is for me. Usually LSD is almost somewhat "speedy" for lack of a better word. Not in an amphetamine way, but I usually find it extremely energizing. LSZ however, was much more relaxed. I certainly would not have been able to fall asleep, but I wasn't overcome with an urge to run around like a lunatic either. So I guess I would sum it up as being neither stimulating nor sedating, but very comfortably in between.
Apart from that, it really seemed like any other LSD trip. Even the differences noted above could be written off as unique to that particular trip, as trips do vary wildly sometimes with LSD. I'll need to try it again several more times, as well as incrementally increasing dosage, to see if the noted differences continue to manifest or if any other differences become apparent. Also, I have to state that I think I find LSZ to be somewhat weaker in dosage than LSD. Either that or my LSD has always just been very strong (a possibility as I'm in California). I base this on the fact that 150 micrograms of LSZ seemed equivalent to one hit of good LSD, which I've always guessed was about 100 micrograms. But this is speculatory, as I have no way of knowing exactly what the dosage of my LSD blotter has been.
Visually it was decent, but about in line with a trip from one good hit of LSD. Some very light patterning and everything definitely had that "LSD High Definition" look to it. The body high (or body load I suppose) seemed less intense than LSD which for some people may be nice, but I've always loved how my body feels on LSD. I'm sure more of a body high will manifest with higher dosage though.
In summary, it was great! Loved the experience, it was very very much like LSD. I will be trying this again soon, I'm just waiting long enough to ensure that my tolerance is back to normal.