Hi Rax,
The email in the profile is OK, blast away.
The same is in my area, Doggies are not easily found in the market. The fishing boys told me they are not easily landed, maybe because they love to head for the rocks. Even a 130 pound fishing line is nothing to a 40 pounder dogie if rocks are their destination. In Midway island, they said 100 pounder Giant Trevaly is common but landing them is very tough, they head for the rocks. Minimum is 80# gear they are using.
The yellowfin tuna I have been landing last time has always been those feeding frenzy in very deep water with no rocks to cut my line. I can land a 50-70 pounder easy in less than 20 minutes with my 30 pound line on a simple Ugly Stick 2 piece rod, Pen small lever drag reels with 500 yards capacity, standing up with only a belt. The captain was good, he does most of the chasing with the boat. Sailfish is a sissy when fished on a line, I mean size for size, only a bit more hard working than a spanish mack. Marlin & Wahoo I don't know, never caught any.
I just talked today to a very good freediver hunter, he made the Collins Speargun. He was in one of Indonesia remote eastern area/sea. His friend shot a Doggie no bigger than 70 pounds and it managed to sink 3 of Riffe Torpedo floats. Man, that is at least 15 liters x 3 = 45 liters of floatation.
I thing for sure, a 5kg Dog when not shot vital can pull me for a short 100 feet ride if I just follow and no resisting. Even 10kg Giant Trevally can't do that.
I think jigging or mid water bait fishing can work well with doggies. Once I shot a 20 pounder and it has a small hook in the mouth. However, the area I hunt has many boats trolling, seldom they land doggies. They bottom fish for snappers where my dogie heaven is, same spot, those 30-50# mono won't stand more than a few seconds, not with the way the rocks pinnacle is popping out of the sea bed like what I saw.
IYA