I have a console unit that is going bad (Lowrance) and out of warranty. I would like to take advantage of the new technology on a limited budget (1,000 range). I am looking at Humminbird SI capability on a screen large enough to show fish and structure for crappie and walleye. On Bull Shoals the water is so clear you must stay well away fishing areas for bass. For crappie and walleye trolling or jigging in 25 to 30 ft. of clear water will work. I will move bow unit to console and put new unit on bow.

What should I look for. I am OK with used units and take my chances on failure. Would love Livescope but cannot dedicate 2500 to a graph.

Looking at G2 Helix 12 SI/DI and older 998 SI. Which of these or what else would you recommend for crappie/walleye.

Joe