I have 2 months and 2000mg worth of experience with this substance. The first gram had a burnt orange tint to with a weak, but noticeable, chemical smell. The second gram was a very white color and had a strong chemical smell. The white tinted batch was very noticeably more potent per mg. My starting dosage was 3mg measured on an accurate .000 scale. Before trying JWH-018, I had a lot of experience with the Spice and Galaxy smoking blends which have been found to contain this substance. I had been clean of marijuana for 9 months before trying pure 018.
My first several experiences were with 3mg smoked. This was quite an intense marijuana like experience, with some unique differences. The onset for me takes what seems to be exactly 5 minutes, and all the effects come at once. Effects seem to diminish completely after around 1 hour, with no lingering after effects. I never experienced feelings of panic until I increased the dosage above 7mg for the first time. After a couple of weeks though, I was unable to get any type of panic or side effects no matter what dosage I smoked. Tolerance will definitely build, but for me it seemed to get to a point at which it leveled out. 5mg smoked, even after nearly 60 days of daily use, still will provide effects that are IMO better than marijuana and much less subtle.
The largest amount I have smoked is 25mg. I have done this several times after my tolerance seemed to level out. Even at this high dosage (I've never heard of anyone smoking this much), I noticed no negative effects. I also noticed no respiratory symptoms throughout my experience with this chemical.
I have also experienced this chemical orally. My first experiences were with 10mg dissolved in distilled H2O. The onset took ~30 mintues, with effects peaking around the 40 minute mark. The oral duration for me was around 2 hours. I would recommend oral ingestion to anyone who is panic prone due to the much more gentle onset and a slightly less intense peak. My maximum oral dosage was 50mg. This was near the intensity of 25mg smoked, with a much longer duration.
Around the 30 day mark of my 018 use, I began to smoke marijuana again. Combining these two substances is absolute cannabinoid bliss. I definitely noticed cross tolerance issues between marijuana and 018.
Always start with low dosages, know your body, listen to what it is telling you. If anyone has any questions about 018, feel free to ask me . Stay safe BL!