There are bass in that lake, I have caught them. However, I have spent far more time fishing than catching at that lake. My best days were actually the sort-of point just 60 or so yards southwest of the ramp, the rocks by the bridge on the SE end, South side (the part you can see from the ramp, across the channel), and the lower 1/3 on the West side of the lake starting with the Y-shaped cove and going down from there. I've caught a few on the deeper shoreline sections of the major arm off the upper end (the arm that goes due North) as well, but that's been spotty.
That's from fishing there about twice a week for the entire 2009 season. I once thought I would make it my home lake since it's only about 15 minutes from my doorstep, but after fishing there that whole year, I was not as excited. I fished Randleman Reservoir on its opening day in 2010, realized it's only 15 to 20 minutes further from home, and I haven't thought about Thom-A-Lex since.
Glad you caught something, that's better than a lot of days I spent out there. Best day I ever had I caught 9 and I wondered what the *&^&* happened; most days I felt really lucky if I got to use more than 3 fingers to count them up, and plenty of skunkers.
Congrats, I hope you crack the code out there; I never did!