Direction of transponder on fish finder

[rw02kr43]

I have the cuda 300 I bought about a year ago. I fished a bit with it but it seemed to cause more frustration than anything else. It would tell me depth and water temp, but not show me the bottom or structure. If I turn the sensativity up it will show a ton of fish that I know are just algea or something. I was thinking, does it matter which direction the transponder is facing? I had the wedge part facing forwards. Thought it was more aerodynamic or something. Does that matter?

Jason
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