The custom spring guides are known to take the twang/buzz out of springers, but do they improve the accuracy at all ?
If you can't get custom guides, add some Tune in a Lube grease on the spring. Buzz gone. It made my HW95 perfect.
That tight space between your ears makes all the difference in the world. -Y
I sent an OEM spring from a new HW50S to Motorhead for treatment a week ago. That treatment consisted of having a custom fitted guide and top hat made for that OEM spring. I changed out the current OEM spring with the Motorhead customized spring this morning. There is a day and night difference in this newest 50S! There is NO twang nor wobble, just a solid thump when fired.Yes, that modification made the rifle more accurate.