For the spurs, if you can't get them to mesh right, check that your motor mount screws are tight. Also make sure the spurs can't wobble on the shaft. And take a looksee at your pinions. Sometimes the pinions wear real sharp and wreck the spurs.

I ended up changing out to genesis spurs and steel pinions. Works fine.

I think the FF steel spurs are supposed to be out right away. I made a post on customrccars forum asking them when they will have steel spurs in. I'll let you guys know what they say. The cen ones look a lot lighter than the genesis ones too.