It's all about vision when it comes to ruts during a moto. First do a walk around the track & check out the dirt. Is it heavy or light, are the hosing it down after each moto. If it's heavy you're going to see some big ruts. Are they in the turns, after jumps or a whoop section. How big are the bikes, a 450 will rip it up in a hurry & leave foot peg ruts. How many usable lines are there? If there's only 1 solid line passing is going to be rough. Most times you'll have 2, especially in the turns, a tight inside line & a wide outside line. I always went outside berm unless pushed inside, I always felt quicker but the distance is increased. Nobody likes ruts, the pros hate them just as much as amateurs. You need to watch the guys in front of you & watch the ruts, you'll see them get deeper. There's nothing more fun than getting cross rutted at speed, it becomes a matter of strength & luck at that point. You need excellent vision, the right choice of tire & often big b****.