I also keep a log on each bait I make. I take it one extra step that I feel is important for me. I will build a crankbait, assemble it ,topcoat with devcon, install hooks . Instead of painting the bait, I use a colored marker and make one side green and the other side red. This way, as the bait goes through the water, I can see just what is happening as far as the side to side movement goes. After I am satisfied with the performance of the lure---I take it apart and duplicate the entire process on a new bait. If all goes well, the new bait will require little or no ajustments. The original bait ( now in peices ) goes into a numbered bag that matches all the spec info in the note book. Note: keep the log high and dry so that you will not have a need to start from scratch if flooded by a hurricane as I was. Trying to rebuild 25 years worth of information is tough! Good Luck, Joe