I found a Shako today I've found that ~200 mf is the ideal mf, almost every drop has a unique. Diminishing returns really start kicking in as soon as you go over 250 mf. I've also been running for keys lately, but even Nilathak is more yielding than the Summoner >.<
Got the shock of my life when a ZOD dropped from one of the boss gangs by Countess during a run... and directly after I got out and bought a lotteryticket
Now my only headache is what to do with it... keep or trade??
I found a reaper's toll, which dropped at exactly the right time, because my werebear druid was about to go to Hell. Now he kick's pi's butt and while killing a pi a lightning skiller dropped.