Okay, comparison #3 started about 20 minutes ago concurrently mining ZEC on Flypool using a fixed difficulty of 10000 (by using the switch "-p 10000").
If you like watching paint dry then you will surely love to check on the status of the miners:
I created these two addresses just for this test so they are starting from 0.
dstm catches up. After beeing some steps behind its now close up.
Yes, I've noticed that too each time I've done this test. Bminer starts off strong but then settles down after a few hours, while dstm seems to take a few hours to ramp up to speed.