Group level spread to get exp

[dafier]

True example:

I was in DL getting xp in a group. There was a lvl 50 SK, Wizard and ranger, then there was me. Level 43.

Yes everything (NPC) was completely destroyed and fast but my xp was dismal at best. I saw 1% every 10 or 15 kills.

Like the explanation reads in the Game Mechanics blog, you can group with higher level people, but they are going to take a huge chunk of the xp.