Small shad are not that great as bait. While fish will eat them they come apart very easily and often the only thing you notice from a bite is an empty hook or just the head of the shad remaining.
Ghost minnows are very good bait for smaller fish like Crappie and sand bass. Sand bass will eat a surprisingly large shad.
John 21:3 Simon Peter saith unto them, I go a fishing. They say unto him, We also go with thee.