i just got a helix 10 g1 on the dash i have an 1999 on the bow can someone please explain why i would want ac pro for the pc? why wouldnt i not just buy a zl card that would keep letting me save more then 8 hours of data on the helix correct? not sure what im missing here? not sure what i would be gaining with ac pro. If I make a map with the helix and had a.c. pro would it make a map that would look like it does on my helix on the 1199 , would it show the colors and vegetation or would it just show. Or would it just show contour lines on the 1199?