I'm wanting to purchase a new side imaging depth finder. I've been leaning to the Hummingbird Helix 7 SI mega chirp gps G4. Its a new unit which isn't in stores yet. Its within my budget but it may be some time as Hummingbird doesn't know when the parts to manufacturer it will be available. I am also considering their Helix 7 down imaging unit in the G4. I considered doing a network system, its a bit pricey to complete the system.
What other units do you use? The Helix 8 is a possibility. Lowrance ratings don't look good. What about Garmin units? If I go with the Helix 8 SI which down imaging unit would you go with? Or should I just wait it out?