Looking to purchase a chip for better mapping offshore. I run a 12 live up front and 16 carbon at the dash (linked). I live in Tennessee and only fish outside of Tennessee when I go home to Alabama every know and then to fish lake Eufaula. I mainly fish lakes around the Knoxville area but will be traveling from time to time to middle Tennessee. I am hoping I can buy one chip that will work with both units since they are linked. I am looking at CMAP contour +, CMAP precision contour HD Tennessee, and navionics hotmaps platinum south. Guys with experience using these, let me know your thoughts
thanks,
bruce