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Collimation
Eric, check out Andy's Shot glass web site, he has a great tut that inspires confidence and encourages boldness in collimation, the more you do it the better you get , or get it, if we were younger. On the mechanics of the primary, I have similar concerns, so why not wind the adjustments to a central position and start from there., If nothing else it may provide peace of mind. Regards Greg.
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