I have my transducer mounted to my trolling motor. My trolling motor is a Power Drive with I Pilot which uses the remote . I have the unit mounted in the front of the boat. When I am largemouth bass fishing I have the chart speed set to 1 which is about the same speed that I am moving. The problem is when ever I move the trolling motor the graph has to redraw and I get the line. I tried changing the chart speed to 10 so it would redraw much quicker. It seems like this was working fine, maybe even better because I could turn the trolling motor different directions to look at other structure. What are the drawbacks from having the scan speed set so high? Thanks for any suggestions.