I see not a normal spike in ETC network difficulty going from 278 T to 310 T from in just two or three days.I think this increase is due to the fact that many 4 GB cards from China are already bought and put to mining the ETC which I think we should see another increase in network difficulty in the coming days,also ETH difficulty gradually increasing too so even the 8GB cards and ASIC miners seem to be relocating.I think the majority of these are relocating in Texas and now that difficulty is increasing again mining will not be that profitable in the near and not near future.