New to GPS!

[Bass Addict 170]

I prefer Navionics b/c of the extreme bottom detail and accuracy of nav aids on lakes like KY and Barkley. But the amount of alternatives are going to depend on your unit brand. I.e., Humminbird units will only run Navionics or Lakemaster charts, Lowrance will run those plus LEI Fishing Hot Spots (Insight USA on HDS systems)--certain brands will only accept certain cards/mapping options. Regardless, your upgraded unit will give you a much greater advantage over your old unit, but keep that manual with you on all trips...never now when you may need troubleshooting help.
Also, try checking out YouTube for demos and tips on your unit. I've typed a unit model number before and got 20+ hits, and a lot of useful info. Good luck!

[jdw174]

I have the Navionics Platinum in my HB 898. Don't think you can find better for Ky/Barkley Lakes.