I can get one of these under $700 and I see i can get a last years Helix 9 si Mega g2 or $999.
I'm upgrading from the 899 si unit and learned my lesson hard on not knowing about transducer upgrades.
So, other than screen size why would I need the 9 ? Is there a transducer difference? Is there an upgrade for the 7 recommended?
Any input welcome.