Recommend staying more than 15 car lengths back. douglas had small rocks flying off his truck so I stayed 6 or 7 car lengths back. One ended up cracking my windshield enough for replacement and doug doesn't know what to tell ya. Hysterically rude and would never recommend this company to anyone. Been in business 20 years and still cannot figure out how to hold their gravel properly. He says you shouldn't be following me close, not sure how far back he wanted me to be. Acted as if it is my fault he didn't secure his truckload. No license plate. Will be getting a dash cam hoping it happens again.