re: Favorite blue and channel cat bait for jugs

Skipjack is probably the best for blue cats but usually expensive

Cut up one of those big invasive carp. Bloody and the skin keeps the bait on the hook. They dont freeze but usually free and easy to fund.

For flatheads use anything live. Best bait is live baby Buffalo and carp. Catch them in a wooden catfish slat trap with soybean meal bait. Second best is live perch followed by goldfish.

I also use chicken livers because they're cheap and easy to get. Hook them through the main artery to keep them on the hook.

Like you said live crawfish is always a good choice.