What are you guys using? I am using a new Lowrance high def 7 inch, I like the sonar on it but am not sold on the built in gps seems like it could be better, when you set a waypoint it is like you can be 50 yards from it an it still shows you right there, I have set waypoints on the parking lots of boatramps on truman and when you go the next time it will show that you are in the water I am seriously questioning the accuracy of it . Out on the water you can set a waypoint and then try to come back to it and it seems like you are not at exactly the same spot, I would like to add the Navionics chip but there is some kind of glitch where you have to use the older Navionics it supposedly will not read the newer navionics cards. It also loses bottom at higher speeds, as has every unit I have ever owned, I have tried many different mounting points and always have the same results. Loses bottom at high speeds and seems to go crazy from disturbances such as increasing your idle speed or lots of waves. How about the hummingbirds? I know a lot of guys rave about the side imaging, but have also seen a lot of guys complaining about the transducers causing a rooster tail and also complaining that the mounting brackets for the transducers are not well made on the hummingbirds. I have never used one so I do not know. I am curious what everyone is using and what you consider to be the pros and cons of the different units. Thanks for any info you can give me. I am a low tech guy and these things can be confusing. Good Fishing!