Personally i think it's a great idea and not much worse than contraptions i see in the structure forum. Always make sure game and fish are ok with before sinking! IMO crappie will find and thrive on natural hardwood better. I have started taking block an nylon rope and dragging good looking laydowns from the shoreline myself. Pulled one half a mile across lake not long ago and sunk. It's easier to me to do the work on spot. Good Luck👍