The Saitek X52 Pro has an additional inner spring. With the original X52 spring plate, the stick became too stiff and the internal spring actually reached its solid
...Plus length thus limiting the range of motion. I increased the inner diameter to accommodate the inner spring and and added an entry chamfer so the so inner spring wont get caught on a the lip. The result is that only the outer spring is compressed to increase stiffness slightly.
Install with lettering upright, snap into place.
