Some people swear by crappie nibbles. I use them also when crappie fishing. The problem with crappie nibbles when crappie fishing though is if there is a bream, sunfish, redaer, etc. within 30 yards they will attack it will everything they have.
Crappie nibbles work! I don't throw a lure in the water w/o one.
How many times have you been crappie fishing when he wasn't doing any better than you to catch crappie with the nibbles? There are times when crappie are just tight lipped. You can throw the whole tackle box in the water and they won't even sniff your lure. Some days are going to be like that.
With that said, (repeating) I use crappie nibbles on every jig I throw in the water. The last three weekends most the people in the creek I am fishing have not been catching fish. I haven't been killing them but I'm catching enough to keep me going back. I go behind them and catch fish off the structure they were just fishing. On;y thing I can figure is the crappie nibbles are making the difference.