I want to ask a question, dont take it like I am bashing H.Bird or Lowrance. Now with all this talk on gps issues (the donut) with H.B. can you tell me why I should spend my money with H.B. and get 597ci HD DI instead of going with lowrances HDS series or ther Elite series with there DSI. I posted in the donut post how I am on the fence. I like the H.B. with DI but there is a voice in the back of my head saying stick with what you have which is Lowrance on my boat but neither has gps. What holds me back alot on the Lowrance is the complaining of the customer service. Like I said I am not bashing either company I am looking for help trying to pick a unit out. This is alot of money for me to spend on myself rather than my family. Thanks