It's not the "what", but the "where". Sorry if that sounded like a smartass comment, but from my limited experience of chasing big fish (bass), it's true. BTW, is your pond really a pond, or a reservoir? (Does it have a creek channel).
Once you located the fish you'd like to catch; I'd suggest fishing there with your favorite baits, slower; and as often as you can during different times of the day..
Good luck.
P.S. I haven't fished a lot this year (too much work); but the two 5+ fish I caught so far came on a jig and the bluegill swimbait you see in my signature. The only three baits I really need. Your mileage may vary.