testing this miner on some of my rigs ,  hash rate starts out good , then some cards start doing the claymore twostep

from 29.8 mhs to 15 mhs or lower.

Some rigs crash as well.  Do you want copies of the log files ?  This happens on claymore too but faster on this miner , and not even after a disconect and reconnect

its defintaly faster than claymore but seems more unstable , cards lose hash rate fast