Last bass boat (1986 Winner) I had, had black and white fish finder up front with transducer mounted to the trolling motor. Also a Lowrance 'flasher' depth finder at the dash. I can't even find a 'flasher' type depth finder to mount in my new-to-me boat. So with that, can someone help me decide what I need? I want something that will read depth at speed and something up front while using trolling motor. I'm not against spending the money on pieces that are excellent and serve a valuable purpose. But, I'm getting frustrated with all the options and not knowing what I'm doing. Sidescan, sonar, 43/800 mkhz transducer, etc LOL.