We have a new MOD for our SPR02 part to avoid beding of it.
For this you need to make a small chamfer on the SPR02 part as shown in the picture below. Such additional chamfer on SPR02 increases the rigity of SPR02/ST05/damper system, reduces the undamped bending of SPR02 under load and improves overall damping.
The chamfer on SPR02 should be big enough to provide contact between ST05 and the damper axis.
You can make this chamfer via round needle file or via round Dremel grinding tool.
Also its good to adjust the angle of the SPR02 with bending by hands. A photo of the correct angle is added herewith also.