Tak collimating scope, Als Collimating software for final tweaks, 5 minute sub on a good starfield to validate corners.
I started with a Cheshire but my personal downfall was moving from a refractor to an RC and not really understanding what I was looking at. Tak nailed it for me.
Nothing wrong with over capitalising a GSO RC as once it's right ( or pragmatically close) it's a great scope and excellent bang for yer buck.
Enjoy
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