Effective berley for snapper

Many fish species have a keen sense of smell and are able to detect low concentrations of an odour. It is also thought fish can detect specific elements within a mixture of “smells”. Why should we care? Because the more we know about fish the more fish we can catch. When fishing with pilchards for instance, often a good bite will return the pilchard minus the gut cavity. That’s because the gut is where the most protein is: liver, heart, kidney, fish — like some of us — like a good feed of offal. The rest of the bait gets eaten next. Squid appears bland as a bait, It stays on the hook and, if fish are hungry, they will bite it. Enter the squid’s liver/entrails, it's much sought after buy predators, as the squid’s liver is full of protein. So where am I going with this? We throw a varied salvo of flavours to attract fish and entice them to bite. We should be selective and take time to prepare baits and dress the bait with tasty "condiments" — a hunk of squid without some flavour on it is like a dry cracker, surely? Do fish seek to graze the top shelf? Do they seek out high protein and nutrient-rich morsels when food and bait is plentiful? Surely pilchard’s missing gut is (unscientific) proof of this. Soaking baits in fish oil, stuffing squid with mushed pilchard, using greasy salmon as a flavoring for your bland baits might get the fish in a feeding mode. Swimming past a hunk of plain squid wouldn't get me going, but if it were plastered with ground stinky fish guts (I wouldn't recommend snapper guts), yes please. After all we all like condiments!