200% / 9 = 22.2% for each Player. 170% / 7 = 24.3% for each Player. So with 7/7 gets everyone per mob even more EXP than 9/9 Also you must run between the Kills to the next mob, so that kill rate is not significantly higher at 9/9 to 7/7. So only the EXP% it could not be. if u count with the factor that every dd deals the same dmg its a difference of 40% in dmg. so its a big factor in my opinion. Yes you may have 40% more damage, but only in the period where you are fighting. In the period where you pull mobs, or wait for respwan or run to next mob, it does not matter how much damage you have. So 40% more damage, not equal to 40% more speed kill. If you have a good spot where you can fight constantly, are + 40% Damage already a good thing. If the spot is not so good have the + 40% less effect. That's the point, in my opinion.