I've been trying for 10 days, but it's been a sellers market on both nicehash and westhash since the last difficulty adjustment (mmr too, and betrarigs is a mess).  If the expected return is 0.01131 per TH/Day, it only makes sense - for me - to buy at ≥ 5% below that.  ..and it looks like it will get 'worse' on Monday, based on current network hash rate.

But I hope you solve one, and it's loaded with transaction fees.