You seem like a cool dude! Welcome!
I actually don't know much about the rue brew, I heard enough about nausea associated with it to do a simple extraction. It really only takes a wee bit of work to pull the harmalas out of the rue, and you'd still be getting a good array of alks that define rue pretty well.
Anyhow, take a look around the forum, if ya search i'm sure there's stuff hidden around here regarding this combo.
Everything I post is made up fiction. SWIM represents a character who is not based in or on reality.