trainwreck is absolute gas. bought a 90% top shelf cartridge and it hit me in the face HARD! great head high, super fun to smoke and go out and explore; or wander thru campus at night lol. I have adhd and this strain has really helped calm my hyperactivity and made it bearable for me to be able to sit thru a class. be careful though if you smoke before class, take little by little at a time or it will literally wreck you like a train. good smoke fellow comrades 🤙🏼💨