Great question! The use of rattles in your jigs can be a game-changer, but there are definitely situations where you might want to avoid them. Here are a few scenarios based on the video context and general bass fishing knowledge:

1. Clear Water: When fishing in clear water with visibility over four feet, bass can be more cautious and rely heavily on sight. In such conditions, the extra noise from a rattle can actually spook them. As Randy Blaukat mentions in the video, in clear water, especially when bass are finicky, it's better to go with a silent jig to avoid any unnatural sounds that might scare the fish away.

2. Highly Pressured Waters: In areas where bass are frequently targeted by anglers, they can become wary of unnatural sounds. Using a jig without a rattle can be more effective in these situations as it presents a more subtle and natural presentation.

3. Post-Cold Front Conditions: After a cold front, bass tend to be less aggressive and more finicky. The noise from a rattle might be too much for them in these conditions. As mentioned by Randy Blaukat, in such tough conditions, a non-rattle jig can be more effective.

4. Soft Bottoms: When fishing over soft bottoms like mud or clay, rattles might not be as effective. The sound of a rattle is designed to mimic the tapping noise of crawdads on hard surfaces like rocks or wood. In soft-bottom areas, this tapping noise doesn't occur naturally, so a silent jig might be a better choice.

5. Finicky Fish: If you notice that the bass are inspecting your jig closely but not committing, it might be a sign that the rattle is deterring them. In such cases, switching to a silent jig can sometimes make a difference.

Remember, the key is to observe the conditions and the behavior of the fish. Sometimes, a bit of trial and error is necessary to determine what works best on any given day. Happy fishing, and tight lines!