First off I know nothing about this I'm new to the chips I have a helix 10 and a helix 9 G1 and I would like to get A smart strike chip for the units I believe I want the Great Lakes one that covers Tennessee Ohio and Kentucky my question is can you also use those chips for navigation or do I have to get A different chip for contours and navigation ? . I see with the smart strike chip there was a version one and they're coming out with a version two do anybody know the difference in the two chips ? Thanks for all the help as I stated this is new to me so any other advice would be greatly appreciate it .