Hardly....working but on 250MHs machine I getting between 100-150Mhs ( for about 5 seconds peaked up to 210MHs ) and I should be getting 250-320Mhs.
The problem is that 80% of you think that you know how to setup a pool but you don't...unfortunately.
The pool updates the speed of worker every 1 minute.
5 seconds aren't enough for determination of speed of finding shares!
Difficulty is too small to start ASIC on 250mh/s