Can I add one suggestion to this? I'm not a fan of drugs but in terms of safety, perhaps it would be best if someone in the group remains "sober" each time just in case someone has a bad reaction or some other outside trouble arises. I get that people do things and make their own choices and I definitely think your tips will help those who make those choices be prepared. But I really think it would be good for people to remember to have someone around who can and will get help or do whatever is necessary. People do have weird unexplained reactions to things on occasion. Just like you need a designated driver.