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Hi Dave,
One thing you will need which is essential if you don't already have one is a laser collimator, with the flex tube I have found that it sometimes wanders (although, this is probably more to me not locking the primary mirror properly), so collimation is something I tend to do EVERY time I set it up.
Mostly its fine, but with the secondary visible through the truss poles, accurate collimation takes 20 seconds with the laser, so its well worth checking.
Cheers
Chris
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