I am from europe, there its usual to smoke weed with tabacco. I bought myself vaporizers (pax, flowermate, arizer q...) but weed alone has another effect in my brain. There are research articles, who determine that feeling of mine. weed with tabacco is addictive! I can confirm it. Its more a downer.. smoking weed in a vaporizer, there i have more a upper feeling. There i am not able to sleep (I use weed primaly against my sleeping problem). I can feel, tabacco isnt goodness for me, it get stomage age, i smoke more than i prefere... In the US its usual to smoke weed alone? did you observe the same?