A fellow pilbara angler on another forum posted these pics recently, along with the following statement;
there were a lot lot bigger ones down there...
Thought it was worth a post, especially since it's not that far from where I live.
For those who don't know, Onslow is about 3 hours south of Karratha, north west WA, or about half way between Karratha and Exmouth.
Have a crack at guessing what they weigh, would be good to hear a fairly accurate estimate from someone who has caught alot of GT's.