Sprong???

[BrianG]

Disclaimer: I've never tried the Revo springs. I just figured it worked on the Revo so why not the emaxx. The Revo spur doesn't wobble.

One of the reasons for the wobble with the stock spring is that the ID of the spring is bigger than the shaft and it's difficult to get it centered when tightening it down. It ends up being off-center so there is more tension on one side. I tried using a little heatshrink on the shaft so the spring is centered and it did help, just not enough. I think the heatshrink "gives" too much. Another reason for the wobble IMO is the fact that the top and bottom of the spring is not completely flat.