TPU "Spring" & Gear Retention Mod

There are two parts here: A TPU “spring” I designed to add reseistance to the shifter and return the lever to neutral and a modification of the original shift gate. Now, it feels and works more like a real shifter. Print all of the other original models parts as recomended. You print the spring from TPU with tree support, but snip the support off rather than attempt to pull it off; It doesnt matter that its clean or not. I used Sunlu 95A from Amazon. Don't feed this from AMS. Use a Y-splitter. My P1S prints 95A without issues, but YMMV. You will also get some stringing between the arms of the spring which has no effect. I find that the top edges of the curves of the spring arms are also not super clean, but it doesn't affect it's functioning. You can experiment with different print settings. I would recommend gluing the base of the spring to the base of the shifter cup from the original model to prevent it riding up in the cup and loosening when shifting. The threaded end o