I use a rig body around 8ft long, hook link either end around 6ft long, I find white pop up foam the best, 4 or 5mm in diameter, 10 to 15mm in length, size 10 to 12 fine wire (so the hook is very light!). 100% use flouro ? some match anglers go very light, but I stick around 8lb. Tiny baits for gars and mullet. Yes the IG rig will work but I definitely prefer multiple hooks. For macs and scad I use huge pop ups, bits of white foam, 4 inches long, half inch wide. Decent for bream as well, just knit them onto a normal clip down rig. The scad are there now and will always appear around dusk along the edge. You might need to draw the fish in, chum with oils and sawdust, fish scraps is good ?