How to catch big flathead cats in a farm pond?

how should I setup to catch big flathead catfish in farm pond. I got the rods and reels (7ft uglystick catfish rods with penn fierce reels, 65# braid, I've caught 30lb+ cats with this combo no problem) just want some tips on how to go about catching them in a 1 acre pond instead of the James river. Should I fish the deepest part of the pond (8ft) or should I fish in the average depth (5ft)?.Should I use large chunks of shad or herring or something else?