2016 m1 is so bad on tyres that Zarco has constitently made the soft tyre work over race distance. The original 2017 didn't seem to wear tyres when Vinales was dominating on it, in comes the new chassis Rossi demanded and once again it destroys rear tyres. I remember at Silverstone Rossi ran a harder tyre than Vinales who ran the softer but Vinales was able to have more pace than Rossi at the end. Maybe Rossi is actually the problem?