it's even more as he's changed his address in mid 2017, i found some old logs with the previous address . And he has some other miners, which add to his crypto diversified portfolio.
In regards to your question - if it was me I wouldn't answer on such type of question, no offense here. I hope you realize difference between 'yours', 'his miner's' and all 'others's in between (environment&hardware) related problems. On top of that, you always have a choice - looking into someone else's plate will almost always lead to a depression...