As already mentioned sub surface stickbaits seem to be the most effective but you will get Spaniards on any GT popper. I remember fishing at one of our local big GT hangouts with a mate once and he had just tied on a brand new Orion Bigfoot.... just before he makes his first cast he says, "Man I'll be spewin' if I lose this to a Spaniard".. stickbait touches down, first sweep of the rod, big flash of silver, bigfoot gone. Haha, it was classic.
