I have run the NE property a few times. It has some open section and some real rocky technical sections. There is a pretty big green loop. I split time watching the King of the Hammers race and running tail gunner. The guys in the front, did not read the trail signs, they were too busy talking.
For Lake Christy, the two entrances are getting worn back making it harder for deuces to get in and out, but I am game to give it a shot.
Stick to the edge if you are going to cross it, it is deep in the middle and there are some bigger ledges underwater.