I decided to try some chocamine from 1fast400. I am still trying to titrate the dosage. What I did was mix up 1 gram with 5 mg of yohimine. This stuff rocks. Took about 30 minutes to kick in. Did get me a little jittery but not sure if that is the due to the. This strongest effects last about 2.5 hours. Just enough time for a good workout. Still feel the residual effects a few hours later.