Driving around, from site to site, I've unintentionally scraped my blade on dry roads, as I had the height set too low, compensating for air flow into the radiator.
It caused thei left side corner cutting edge to wear faster because of friction on dry roads, in between jobs.
My blade is usually angled left , as not to distract other oncoming drivers, unlike the local tools who drive around with their 9 ft blades parallel with the front of the truck. Why they can't angle their blades is beyond me.
Gotta love when the ends of your blades pass each other at 40mph.
The edge in that photo is evenly worn on an angle, so sumthin Elsie is happening there