Looking for a new chip for my lowrance Lcx27. I currently have a older version of lakemaster wisconsin, but does not have depth on it. Now that they are only made for hummingbird and not wanting to purchase a new unit. Does any of the navionics chips cover michigan from milwaukee to kewaunee? Currently looking at the north series chips, but none have michigan in the lake list lineup, but the area that they have outlined for coverage does show out into the lake on wisconsin side.