There is a great deal of debate out there about calculating the weights of GTs prior to release. We recently had Shane Heartstone from New Zealand aboard Bite Me who was kind enough to bring us a specially designed fish weighing bag. Originally designed for weighing Yellowtail Kingfish, we tried it out on the GTs here and it works extremely well.
We plan on measuring Lower Jaw - Fork Lengths as well as quickly weighing the fish before release. It will be interesting to see how the various different formulas work for Kadavu Island GTs.