I may be able to run the Upper Green this Sunday if you are interested. I am the one that talked to you last weekend about it. It is a fun run and doesn't take long. Just let me know.
I would say section 4 on the Chattooga as a good river to have under your belt. You can run it at low water but you have to pay attention to where you are going. You also need to go with someone who knows it because there some place you don't want to be on that section.