This post actually raises a question for me that i dont know the answer to personally, and would love someone who does to chime in. Its been awhile since i was leveling any combat classes, and ive never really done this roulette. So is the bonus you get just a lump sum at the end of the dungeon, or does it additionally give an incremental bonus as you go? For instance, if i que as a level 55 and get lets say cutters cry do the monsters killed along the way give more exp then they would if i qued it straight(which i would only do at level 55 to help a friend)? If the roulette adds bonus exp per kill along with a lump sum at the end, then the OP has a point. But if the only bonus is a percentage based on your level at the end, then its much better to clear the quick anything, then re-que for something else after.