After learning from the posts on this forum, I am seriously looking into purchasing the Helix 5 SI GPS due to the side imaging capability and the price.
I plan to use the side imaging to look for depth breaks in water from 30 to 90 feet deep and under deep docks that line the lake. I fish a large, clear reservoir that has very little natural structure like brush, standing timber, weedbeds , etc. The winter pattern here seems to be finding bait holding near drops in the deeper water and the Spotted Bass schools that follow them. Docks also provide structure that's missing naturally and that attract all kinds of bait and fish.
I understand that the SD card can only be used for one function - either saving waypoints, tracks, etc. or map upgrade cards.
My question is: will the Unimap provide enough performance to allow me to mark promising spots and return to them successfully?
Mike