You see it as noise, I see it as water temp differences. Both of my graphs and my buddies HDS 8 were marking the thermocline differences at the same depth in the same areas yesterday. As for "clutter", it's all a preference. I prefer to know the depth at all times so I can see what's going on and why. For example, why 18-20ft of drop on the side of a shallow sloped bank on an island is the target depth I need vs. 10-15 based on water temp, depth/contour, rock bottom or what. The speed stays on my graph because mine isn't on the trolling motor. Its at the helm and I use it as much as I use the depth when I'm on plane. I'm limited to only 40mph so I play with the trim some to squeeze out all I can. I also use the speed for trolling. I need to be in the 2.5mph range and my boat likes to idle at 3mph or just under. it's all a matter of preference and turning off stuff doesn't really give me any more insight on "whats below" with this graph. I use all the tools to help me and explain what is below me when I see it as I'm watching the graph really close.