I haven't been to Texoma since the flood in May of last year, however I'll give you the techniques I used before then to always catch smallmouth. Hit the ledges near Eisenhower park and even the rock jetties along the dam. Don't be afraid to move to points with docks/boat houses or other cover if you feel more comfortable fishing that way. The smallmouth really seem to move around in Texoma and I often end up fishing quite a few spots in a day, but you normally don't have to move too far. Start with a natural shad colored(if clear water, chartreuse if dirty water) crankbait around rocks and ledges to find fish. If it slows down or they don't react at all to the crankbait, grab a black/blue or green pumpkin jig with trailer or a similar colored tube with rattle if you really want to fish slow. Again, focus on ledges, rocks and docks. Good Luck
"The fishing was good; it was the catching that was bad."