the marcum shallow water ping rate is recommended to be on 1. i leave it on one all of the time, because it works fine that way. it doesn't need more information from the higher counts.
how high do you turn these units up? should only be just high enough to see your jig. if you use wide beam you have to run them up more to see them, thats why some other brands loose their jigs on wide angle in deep water. i use narrow almost all of the time. the ping rate on 1, the target is zero, the sensitivity on 3-5 using size 3-4 mm jigs. IR on 2-3 all of the time, just because it doesn't hurt to leave it on. open water mode on the lx-6.
put your other sonar on narrow also, they may be over lapping if both on wide beam.
wanted to add some thing, when you start fishing deeper water, you will have to increase your sensitivity to where you can just just see your jigs. if you are scouting for fish you can crank it up all of the way and wave the transducer around to try to spot fish. then set up for them if you find some.
i use graph on left hand side, then vertical in the middle and vertical zoom on right. dash board is ok if you want less graph showing.
