Trying Out a Back Blade for Plowing Snow with My Kubota Tractor

I procured a back blade for my Kubota B2301 compact tractor in order to plow the snow on my property. My biggest concern is tearing up the gravel driveway. Therefore I experimented with blade angles, starting with a shallow angle and moving, if necessary, to a more aggressive angle to optimize snow removal without digging into the gravel.