A clarification for the Power Usage though - i observed it, and although lower, it would still spike to ~20W higher than the average. Not sure if you have observed this.
It's an unfortunate side effect of the algo and the efficiency level of this miner in the various stages of CN. I'm 100% sure we will solve it in a good way in the end though. See I reply I wrote ~30 mins ago here:
https://bitcointalk.org/index.php?topic=5059817.msg47528064#msg47528064 for more details.