Night or low light levels...I haven't fished that lake yet..I like crankbaits fished on the slower side........I have not invested to much time in the game yet but the Walley or Zanders seem to simply be in the mix with other species in active spots,I have not found an area that produces Zanders only or them being the dominant species....MOVE around a bunch until you get one,then target them,usually they stick together...I have found if I fish a spot then go back to that area(if I caught them there once you'll get them everytime you go back...
Another option: dark matter 2 or krank rig 2 with Mackeral, Mackeral head or Roach, 80lb line, heavy rain/night or clear sky/sunset, pegs around the top middle or bottom left teleport.
