[suicideneil]

Hmm, got a picture?

Sounds like it may depend on the type of shock & rodend size used. Check also that the tower is on the right way around, just incase its a reversable design as such. Nothing wrong with using the little spacer/ shim things though, they dont look out of place and are pretty much designed for such occasions ( one of the small prices to pay sometimes when doing a custom build vs buying rtr ).