The greens have been too hot for me to want to go experiment with the blues yet. Have had fair success with blue and white Trophy Flasher flies. For silvers I prefer to use an apple core needlefish squid with a herring strip attached so that it makes the squid spin(the faster the better it works) behind a red 11" hotspot One of my regular partners has had excellent succes with a blue backed silver horde plug for silvers.