I bought a different boat this week. It has a Bird 998c on the console. I have Navionics premium hot maps that was configured for my HDS. Can I go to the Navionics site and reformat the card from HDS to Bird? Trying to decide on which unit I want to keep. With what little time I have been out with the bird it seems easier to switch pages and make minor chances. Going to Kentucky Lake for a couple of days next week so I will have a chance to really get into it and try it out.