When fighting a sailfish, marlin, tuna, giant trevally, etc. conserving energy is super important. We cannot fight them the way we play in a freshwater ponds or lakes for freshwater fishes. These hard fighting monsters are no joke. They fight really hard, giving all they got, and sometimes even “cheat” (giant trevally) and push you into a stalemate. Experience of course comes into play. But one very important part of fishing big game is stance.