Stinkbaits for cats

[El Yako]

Any of you guys fish stinkbaits for catfish? I fish for Wels catfish in Spain from my yak but traditionally, small carp are used as livebait. Tricky having a bait-tank on my boat as the rear storage well is awash already due to the weight of my muscular frame, ahem, so have been trying stinky calamari with some success - but you lot have been catfishing in the US far longer. Different subspecies yes, but have you any favorite baits for flatheads?