I caught quite a few of them at Shoalwater and i wasn't even really trying. These were beautiful table sized, from 1 - 3 kilos.
Unlike George who is a true believer, I cannot resist dropping a plastic down after i get buggered from casting a big popper for a few hours. I tell you, at Shoalwater, if you're there exclusively for GTs, don't look at the fish finder because it will drive you mad! I have never seen bait so thick on the finder and it was bloody everywhere. Just unbelievable.
If you dropped a plastic down, something would nail it and as often as not, it was a coral trout. We got obliterated a few times by big reefies. At Marion, we will almost certainly see some huge coral trout (20kg).