[Rattletrap]

I have that exact set up. Still new to boating but, I've only seen one or two markers that weren't on it...sorry don't remember where they were. The Auto Guidance works really well there are a few places it will avoid like the GI bridge for height restrictions. But being that we've been all over the lake and I still have all my prop blades attached I'd say it works excellent especially if your new to the lake. I really liked the compass feature which gives true E/W N/S in relation to your heading.