Gumotex tracking fin

Have you ever experienced the factory Gumotex fin reaching the bottom and hitting rocks? Tearing out the fin holder? If you're backing up and the fin hits a stone, has it already slipped out of place and you've already left it? Is the front too steep, so it hits a rock hard? All of these things I've tried to avoid with the new design. Instructions for printing: Use good quality PLA+ material for printing. I used Elegoo PLA+ Set the nozzle to the highest possible temperature as indicated on the instructions ot the filament (e.g. 230°C). Turn off the auxiliary part cooling of the object. I suggest to use Orca Slicer. Layer hight: 0,2 mm or more. Nozzle: 0,4 mm. Seam gap 15%. Wall loops: 12. Top surface pattern: Rectilinear. Top shell layers: 7. Bottom shell layers: 8. Sparse infill density: 50%. Sparse infill pattern: Gyroid. Internal solid infill pattern: Rectilinear. Speed: Outer wall: 30mm/s, Inner wall: 40mm/s, Sparse infill: 50 mm/s, Internal solid infill: 50 mm/s, Top surface: 30 mm/s, Gap infill: 30 mm/s, Support: 100 mm/s, Support interface 60 mm/s, Enable support, Tree (auto). Everything else should be the default setting. I have tried many other settings, materials, print speeds, but they did not give good results, the fins broke off several times. So I recommend these settings, they will probably be the strongest. I recommend that you remove the support very carefully, with a suitable knife or blade, taking care not to cut your hand! On the front half of the fin, just below the edge where you attach the holder, there is a small wedge-shaped triangle. This is to prevent the fin from slipping out of place if it is hit from behind. So be careful when cutting out the support, do not cut this out! Study the 3d model and note this small wedge-shaped structural element, as it is a very important feature to prevent the fin from shedding like the one from the factory. It does make it more difficult to attach, you have to move the fin edge and the base slightly apart, but I'd rather take half a minute longer to assemble the boat than leave the fin while rowing. If the fin does not fit on the plate, rotate it 45°.