Ok, I'm not what you would call a tournament fisherman. But I did fish one recently that let you weigh 15 fish. I'm also cheap and didn't want to pay what they wanted for 2 or 3 store bought culling systems to get to 15 markers. So I made my own for about 5 or 6 bucks. Mine may take too long for some people but it worked really well for my wife and me. I bought floats and cheap fish stringers then cut the hooks off and tied string on to them and clipped the floats on and numbered them. I also bought a cheap plastic folder (to keep the water off) and printed off a spread sheet that I made and put it in the folder. When we would catch a fish I'd weigh it, tag it, and write the weight down next to the tag number along with the feet of line out and the color of the crankbait to see what pattern was developing. As you can see OC (orange crush) was the best color and about 30 feet of line out. We only caught 13 so we didn't get to cull any but you can see that #6 (9oz) would be the first to go. At weigh in it was also easy to pull our biggest fish #11 (2lb 4oz).Name:  IMG_20160617_115718660[1].jpg
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Size:  45.9 KBName:  IMG_20160617_131724995[1].jpg
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Size:  68.3 KBSorry when I would rotate the second picture it was too small to read.