Have you got the focuser with the large flange that holds the reducer ? I had one of these on a C8 (last year) and it was fine when i viewed with a 1/3" camera.
Spacing from reducer to sensor was ~80mm to get it down to f6.3. If you can reduce that spacing you'll get less focal reduction but won't need as much forward focus.
Can you get it to focus without the moonlite ?
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