Hey Tweaky, as you know those schedules of drug classification should be ignored as they're ridiculous and a product of "the war on drugs".

I'm not sure if you've heard of him but you should check out Prof David Nutt's harm index. He was the chief drugs advisor to the British government and was sacked when he came out and said alcohol was more dangerous than heroin. His research is all backed by SCIENCE. He's a legend, you should check out his work.

Drugs that cause most harm: Scoring drugs | The Economist