I have a helix 9 SI on the console of my carolina skiff. I occasionally spider rig. (usually pull jigs or crankbaits if I am crappie fishing) Since I don't do it all the time, I hate to spend $1000 to put another unit up front. I do some type of trolling 90 percent of the time. Thought about just using the one I have and moving it. What are the pros and cons if I just put a DI transducer on my trolling motor for it? Will it work and do ok? Thanks for any info.