We all search for an edge when going fishing; something that we hope will turn into a magic bullet that gives us an advantage over other fishermen. The best way to find such advantages is to talk to others while having a drink after a day on the water, at the boat ramp or in a tackle shop. For we are always learning, and the successful anglers will always be those who are prepared to learn, to adapt and to try new techniques.
Some thoughts gleaned by doing just that are offered in the hope they might add to the catch. When fishing around an island try and fish on the shady side of the island when the sun is low. You are more likely to hook larger fish in the shadow than in bright sunlight.
If you are a diver, you can check out potential fishing spots by looking for channels in reefs and rocks with food. Or, visit at low tide when such features may be exposed.
When hoping for big snapper of 5kg or more, some people will use a whole yellowtail as bait. They can be hooked with a single hook inserted under the pectoral fin on one side, hook facing forward, and rolled back so the shank rests against the flank and the point sticks out with the eye of the hook facing the tail. The trace can then be looped around the tail with a couple of half-hitches to secure it for casting. If a weight is needed to pull the bait down through waves or a strong current, a small ball sinker can be first pushed down against the hook so it doesn't slide up the trace during casting and create a pendulum effect. This is a top bait when stray-lining down a berley trail. But it also works well when dropped into 40m, it just needs a bigger sinker. Or the little fish can be butterflied with the backbone removed, leaving two flaps of flesh hanging from the head.
They can also be filleted and used as regular bait in chunks or strips, and such baits will resist the picking of juveniles and usually result in bigger snapper being hooked although the action will be slower than with the more common baits such as pilchard or squid. Firing a big fillet of yellowtail well off the back of the boat and leaving the rod in a holder up high with the clicker on the reel to signal action is always a good way to pick up the occasional large fish. Sharks and rays love these baits, too, so some excitement is always on the cards.