SLIGHT WOBBLE ON ORION XT8 DOBSONIAN MOUNT?

I have just purchased an Orion SykQuest IntelliScope XT8 Dobsonian
telescope. It seems excellent and I know that it is recommended by
many for beginners such as myself. Yesterday I assembled it. The only
question arising so far is what is the allowable wobble between the
two baseplates; namely the top baseplate and the ground baseplate?
When I hold the top baseplate perfectly horizontal, there is a small
gap between the bottom of the top baseplate and the tops of the three
Teflon bearing pads on the ground baseplate. This leads to a small
amount of wobble in the top baseplate and the supported telescope. I
have followed the assembly instructions rigorously, for example the
brass bushing on the azimuth axis screw sits in the hole on the
azimuth encoder disk and the brass bushing extends slightly above the
top surface of the top baseplate. I note that the top fender washer on
the axis screw sits on top of the brass bushing and not over it as the
hole in the washer is not big enough to accomodate the brass bushing.
The top fender washer is thus not applying any appreciable direct
pressure on the top surface of the top baseplate. Maybe this slight
wobble is how it should be, but everything I read about Dobsonians
tells me that they are incredibly stable. Any advice would be much
appreciated. Very many thanks.