I can only attest to Sekiu and there's no big secret to success. If you can't catch silvers there then you have serious problems. Put anything out at 30 feet and troll, at a good clip, straight out until you find them. Cut plug, spoons, etc. I couldn't keep them off when I went to a green hotspot and glow white hoochie but then I couldn't keep them off when I used five ounces of lead and a cut plug either. Silvers have got to be one of the dummest fish there is. They are so aggressive it's amazing they weren't wiped out long ago.