Thanx Chris, in my personal opinion in place like Oman Yemen Djibouti, there are the biggest GT in the world, i don't know why, it is strange maybe this fish could swim undisturbed and as you can see in some photo they are fat, probably they eat a lot.
Some local fisherman tell me that in april the find one Gt over 80 kg unfortunatly dead in the net, so i thrust them and the size is incredible.
Vincenzo