I get 33/30 DE for MP 5/10 I propose getting 33/40 in MP 5/10 instead. Even with perfect gear, you will never get better drops in MP 10.
I run 300k + SoJ in MP 5-6 and 265k + IK Belt + SoJ in MP 7-10.
UPDATE: MP 8 gives me the same DE per hour as MP 5 if I use my WH with Rend. MP 10 is the exact same with my WH + Rend. Same DPS in higher MP at a sacrifice to my EHP and LS, which btw makes MP 10 way harder, I still get the same DE. So impressed.
I get 33 DE per hour in MP 5 and I get 30-31 in MP 8-10. So basically, the only reason I am increasing the difficulty is for "the challenge". This is even worse for all other classes because barbs rely on WotB for speed, so the stronger we are, the slower we are in lower MP levels. Though, in lower MP levels, I still get more DE even though my WotB runs out 1-2 times for the duration of the run.
We get rewarded in experience, drops and magic find but we don't get rewarded for being able to do the same with DE. The HP have dramatic increases while the DE has a small increase. Even with perfect gear, you will never get better drops in MP 10. Here are some rates if you wish to see them.
These numbers of course can be played with. I do feel this is much more fair. In this case, I'd get around 33 from MP 5 and around 40 from MP 10. I think that seems pretty fair. These numbers aren't super hyperbole (IE not asking for 100% drops) and I feel well thought out.
Also, bosses should drop at a 1.5x rate and should have a chance to drop double based on 20% of the current drop rate. MP 10 would have a 72.88% drop rate on bosses and a 9.5% chance to drop 2 of them if the boss drops a DE in the first place. The double drop would require 5 stacks of valor.