Well, I'm a little late with help but,
If your are drifting, find area's that have few hang-ups and have rock/mussels around.
Anywhere from 8' - 30'. Cut bait normally.
If you are fishing around hang-ups and trees then I anchor and fish Liver under a slip float.
The catfish on Canyon school and travel around the lake.
You must go hunting.
If they are there you will get a bite in under 30 minutes.
Summer time on Canyon means rec traffic (aka idiots) so get there at sun-up and leave early.
Hope it helps.
I'm a humble fisherman in the service of our Lord.
Started fishin at 5 years old and can't stop.
I've owned a boat every day from age 16.
I fish for every type of fish in every different way.