Am I misunderstanding something about the diff adjustments, or is something strange going on? It's jumping from the 150s into the 260s while the network hash rate barely moves. Unless the pool display of network hash rate is off of course.
Edited to add: I understand KGW, but it shouldn't make diff jump around that much if the network hash rate goes from (e.g.) 4.3GH to 4.7GH. Should it?
Which pool are you mining on? When I was on smalltimeminer, it used to jump around like that. I think it is a configuration glitch with the MPOS web site... If you are GPU mining, you can see the net difficulty in the miner, and that seems to be more accurate. I think KGW might cause MPOS to spas every now and then