Any pool with support for fixed difficulty?
Unlike Bitcoin which difficulty is adjusted every 2016 blocks, EDC's difficulty is adjusted every block and depended on the average time finding a block, ei, depend on network hash rate.
Yes, pool diff. The vardiff seems to be jumping too high on all the pools. I believe the optimal configuration should be 20-60 sec between submitted shares. With vardiff I often see 5 minutes between submitted shares.