Curious if anyone else has noticed this? My new Helix 10 mega head unit seems to have something inside the head unit shifting side to side when you tilt it. I called Humminbird and they said there shouldn't be any movement inside. I went back to where I purchased it and they opened 4 others and they all did it to some degree including the display unit. I'm concerned about longevity with something inside shifting about when I'm out in 3-4 foot seas. Has anyone else noticed this? Wondering if I should be re-thinking this.