Not meaning to hijack any other threads, but in reading a couple other threads in this forum I see that Lowrance has upgraded the 500C. Looks like the 600C is much improved. VR did a great review back in July, and I'm wondering how many others have jumped in. So for you users- How do you like it? Any issues with vibration? I'd be putting it on a Uly, so that's a concern. Any other complaints? Thanks!