So Nate, Erica and I ended up going to Panera’s for dinner before caving, and we didn’t really get to the cave till about 10PM. We stayed in till 2AM though, and we conquered a few of the more obscure passages in J4, and in the process discovered lots of alternate routes to places, and overall got a better idea of how the cave is laid out. Especially the beginning parts around and above the "basement" where the map is pretty hard to decipher.
Here are some photos Nate took on a previous trip... he tends to move stuff around on his site a lot, so I think I’m just gonna snag all these and put them on my site one of these days : )
Nate also took a few photos last night so those should be online soon.