You bring up a very good point and it is something that can be applied to all species some way or another. When attracting a fish to the area it will often take some aggressive techniques added with some flash and vibration, especially when fishing a large body of water over a featureless flat. You want to draw fish in from a distance. Once a fish approaches you don't want to stop aggressively jigging, just tone the sequence down a bit. So instead of popping a spoon in 1-3 foot increments you might want to start some jiggle-pause sequences, but you still want to remain somewhat aggressive. The fish were drawn in by the aggressive technique and that’s what will ultimately seal the deal. Don't just let the bait/jig sit motionless when a fish appears on your flasher, that will sometimes have a negative affect. I prefer to keep the jig moving, but I'll use quick, short shakes and jiggles, and if I get a response or rise out of the fish, then I will add in pause sequences.
I also like to slowly pull the bait away from the fish as I continue to jiggle, this drives the fish crazy sometimes and it will really trigger some reaction strikes. This technique works well on panfish and perch too, not just larger gamefish. But remember, when dealing with panfish and perch you are often times on a smaller scale, so keep that in mind when you determine how aggressive or how large the jigging increments are. For instance, I'm not going to rip jig a size 10 Shrimpo 1-3 feet up and down the water column to attract fish. I'll use more subtle movements like 4-6 inches. And, when a fish comes in I'm going to use very small quivers to entice the fish to bite. Keep the jig moving and if you have a really negative bite you don't always want the fish to get a chance to scan over the bait too long, you want them to take the bait without fully knowing what it is.
Now, there are occasions when deadsticking and long pauses are needed, but a very common mistake is when the fish appears, to stop jigging or doing what you did to get that fish to show up. Sure, you might have to change the technique and slow things down, but you don't want to cease all movement. Fish have a basic instinct to attack their prey right before the prey takes off. And, if you pay close attention to an underwater camera you will see that the fish's prey will quiver very quickly before it darts away. That quiver tells the fish that it's now or never, and you will more often then not see that fish take the bait right then and there. And this happens on all levels when fish are less then aggressive. Everything from tiny micro-organisms all the way to large minnows. Fins will tense up, feelers will pulse, and then the prey darts off. You can mimic those movements by quivering or shaking the bait while you slowly pull it away from the fish. A simple technique that has helped me land a lot more fish during negative conditions.
Keeping the bait moving is key. Even when a person deadsticks the bait is moving, that’s the main point of deadsticking, to allow the bait do all the work and perform all its natural movements. Those are things that negative fish will pick up on and that's part of the reason why your success can increase with deadsticking. You might think the bait isn't moving, but it is. Even when you use finesse plastics and no live bait, no matter how hard you try, that finesse tail is still quivering and moving, and fish WILL notice that and join your offering for dinner.
The Chequamegon bite for smallies had a lot of negative fish roam through, so I had to use a much slower technique when I had fish appear on my LX-3. I used a pretty aggressive jigging technique to draw the fish in, but once they got there I had to really finesse those fish into biting. If I held the bait still those fish would disappear, but if I kept it moving they would stick around. I even watched some fish move in and disappear... move in and disappear...three of four times before the decided to strike. Keep things moving, but simple and you can increase your chances of landing more fish on negative days.