LSD analogs that are more potent then LSD

[flipper]

Somewhere I have read an Acid paper and the're talking about some analogs that are 3 times as potent as acid. I don't talk about that Amphetamine that supposed to be more potent but really an analog of LSD with LSD as starting material in the synth.
What do you guys know about these substances and synths?
You've gotta love me.

[karl]

Check out TIHKAL for ethyl-LAD