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Hi Chris,
I too have recently bought an 8 inch Skywatcher reflector and had the same problem with the mirror reflections not lining up like Jason D's avatar pic says they should look.
After having three different reflectors and not having this problem before, (the secondary circle was not centred inside the primary circle) I found the problem was the PRIMARY. It was too high in the tube, what I did was back the locking screws right off and then screw the collimation screws right down so the primary moved towards the bottom of the tube. I had spent over an hour fiddling with the secondary adjusters as well as squaring up the focuser (mine had an extra washer on one screw which skewed it off to one side), until I thought to try the primary screws....
Problem solved, the secondary then lined up concentrically with the primary mirror and all LOOKED fine, then all I had to do is laser collimate slightly to finesse it a bit.
I think the dudes in the factory wind it up and away from the bottom of the tube to avoid vibration damage or chipping during transit. Once you wind it ALL the way down to the bottom, start all over again with the secondary and you should find it will easily all line up and look like Jason's avatar pic like it should.
Hope this helps.
Cheers
Chris
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