Never been on Sandlin? Do a search on Sandlin on this site. Not too long ago someone posted a pretty good map of the lake marking the boat lanes. Look at it so you first trip does not end you up in the fiberglass shop.
I have not been there for several weeks but the main lake points should be holding some fish right now. The big rocky point on the left hand side going into Millionair's cove usually holds some spots that are willing to bite a crankbait or drop shot or shakey head.