I like dragging the flats. Just remember that they are not all alike. There can be subtle differences. But the basics of fishing them are pretty cut and dried.
If you can find a flat that you can cover in one pass that’s a plus. I think of one area in particular where there are two flats close together with a deep channel between them. If one does not produce the other one might.
Especially in the sunshine, fish will come to hang out on both sides of the ledges that run off the flats. And sometimes they will be on top of the flats. What I really like to do is run close to the middle of the flats and spread baits on both sides of the boat and out the back. My presentation is hitting the top and both side slopes at different depths. Planer boards give me the width I need to place the outside baits where I want them.
If the water happens to be dropping, I will drag a little closer to the channel (deeper). I think the fish move out with the water dropping. Try this presentation and see if it doesn’t put more fish in the boat.