Heya karana
found the information i was remembering about trumpy tonic quest .
http://everquest.allakhazam.com/db/quest.html?quest=130
near bottom of the comments you have "Spar" posting :
"The quest to MAKE tonics at Tumpy in Kaladim did and still does give approx 1000 exp per tonic. The quest to GIVE tonics to Groflah used to give 3750 exp, but now gives 5 (yes, FIVE)."
The quest prior to it being nerfed to oblivion you could take 3 to 4 backpacks of tonic and level 1 into the 20's easy. each turn in was diffinitly more than 11 percent of level 1 toon.
Hope this clears things up.
I personaly remember the fighting to position my alts when their was 20 to 30 people trying to turn in tonic to groflah. man that was fun .