Question on Towing and Weight Distribution for a Newbie

Of course, driver incompetence comes into play in some situations. Most of the times with those class 8 rigs eating the ditch, it was from driving tired and falling asleep to driving too fast for road and weather conditions. Or improperly maintained equipment like tires and brakes. Rarely for overloading or the wrong class of tow power to trailer. The situations are not apples to apples similar for pickup / trailer combinations.