Hummingbird Helix 5 si combo

[crappyslayer]

Anybody else out there using a helix 5 si or similar. When I'm fishing for kokes, I'm not only seeing the fish shapes showing fish on the screen, but I'm also seeing thin curve shapes (like you see on tuna fishing show) showing up on screen. Would be nice to have some idea what is what. Even when I use the flasher screen and try to watch for orange, I never see it even when I'm catching kokes..
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