Lake Blue Ridge underwent a huge draw down this year and I dont think it ever made it up to pool. I've heard they experienced a sizeable fish kill under the summer strain. I've also heard that Ga DNR worked pretty hard to keep fish in it. So who knows.
Be prepared for a bumpy ride and plenty of shopping cart action as you have to walk your boat, drag your boat a lot. Start early cause it takes a long time to navigate either float.