I have some pictures of what Ive done so far in setting up for an event I'm holding Memorial Day Weekend. They can be seen at http://community.webshots.com/album/34744177oDQhcQ We pre-crushed the cars in order to minimize any damages to other vehicles that will enter next weekend. The new mud pit that we have was filled with mud from a pond we are having dug. But, instead of mud, it is a grayish clay that looks like no-one could make it through, or let alone wash off. Should we get different dirt/mud, or just leave it as is?