Cam,
How did you align and collimate your focuser/ objective?
I used a laser collimator in the focuser to hit the middle of a paper screen over the objective...
Then looked at the reflections from the objective (with a end cover in place) when using a bright LED torch into a Cheshire collimator....
http://www.spacealberta.com/equipmen.../collimate.htm
You may also need to fit baffle diaphragms.....
Hope this helps.