Here in Florida, fishing pressure is something we deal with on a daily basis. I live on the Harris Chain where the fishing pressure is relentless. There are numerous club tournaments every weekend. It's getting where you can't find a ramp parking spot on a Saturday or Sunday. Add a 200 boat tournament or two into this mix and you have some tough fishing. From my experience, this has the effect of shrinking the strike zone. It also makes the fish more aware of the sounds of boats and fishermen. If you can find active fish in open water, traditional methods can be effective. Unfortunately, with 50,000 acres of water, the fish have a nasty habit of relocating. There are always some fish in shallow water. When they are pressured, they go deep in cover, go almost totally inactive and the strike zone shrinks to almost nothing. This makes flipping the only real option outside of live bait. Stealth becomes important as well as sounds and shadows on the water. It's not an enjoyable way to fish for most people, but it works. Years ago you could run to some place where the fishing pressure was light. Those days are gone.
If I am going to fish for fun, I prefer smaller waters like private lakes and golf course ponds. This is the same type of fishing I did as a boy and it's still the same as it was back then.