Mistake me not, i'm not saying replace what you have. This is just my solution. I too struggled the with the same issue with my old 2d sonar. Just didn't have the time & patience to search for brush piles. Then on top of that had to run over the brushes to effectively confirm it because i'm in 30ft or less. I saved up for a 598 side imaging and it completely changed the way I fish crappie. I zoom in 25ft off to each side and found so much more piles and piles holding fish. Cut down my search 75%. If it didn't hold fish, i did not waste time. This site has lots of education on these new technology. Don't get wrong, i know people who still fishes without any sonar and do okay, just much more work and time.