I believe that in his book "Raising Trophy Bass," Bob was referring to threadfin shad when he mentioned that almost all lakes with large numbers of trophy bass contained shad.

From what I've seen and read on here, gizzards have their place in a few situations, but threadfins are the overall better choice (in terms of less risk/downside) for boosting your forage.

"Only after sorrow's hand has bowed your head will life become truly real to you; then you will acquire the noble spirituality which intensifies the reality of life. I go to an all-powerful God. Beyond that I have no knowledge--no fear--only faith."