So got a new to me hds 12 gen 2 touch.I bought the navionics  hot maps platinum its ok.Also got the cmap lake insight hd sucks bad.Looking for the best card for use in this graph.Accurate contours would be nice.Navionics best so far but was on geneva and contours are way off from what it says on the graph.Funny my hds gen 2 non touch 8 has alot better built in maps then both these cards.