I also have 6 hours on Mate 20 and S7 and works like a charm. NOT A SINGLE PROBLEM.

P. S. Of course we have a drama queen here that will scream he can't mine on a rotary dial telephone so this project is "lobbying the interests of powerful manufacturers". I won't be surprised if he will continue this by pointing a finger at email for making the telegraph and fax machines obsolete and finally led to the disappearance of the mail coaches.