All these events are how difficult you make them. If you go hard, you going to die. if you take it easy, event will be easy. You have to be very disciplined in first 100km, its very easy to get sucked into staying with the group. Know what you can do all day (normally z2, mine is z3) , stick with this pace for first 100km, then up it to z3 and see how goes. Yes, its might feel slow, but rather slow and finish than cramping/dieing in back of recovery van. Stop at all the stops, fill up both bottles , grab a snack and get going immediately
