OPC Starhunter Colimation

The thread on collimation has gotten me thinking about what I am seeing.
I have seen the ghost of Mars present and hve a hard time focusing at about
150x.

Without doing the collimation and trying again (until later) am I right
in surmising that the ghost is probably due to atmosheric or eyepiece
imperfection and that the narrow focus of the 9mm EP is common?

Has anyone any experience with the collimation of the Starhunter (I am
told that it is Orion XT10 optics with an OPC base and brand)? The mirror
cell appears to be behind a protective plate.

Tom Koszuta
Buffalo, NY