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Collimating by eye seems to work best. I'm becoming an old fogey!
Ignored CCDI and played around with defocused stars - first image reduced the CCDI measured miscollimation from around 6 to 3 arcseconds. Leaving it there, I found the reported collimation shifted between 2.8 and 5.9 arcseconds. Looks like a better focused image yields a better result.
Perhaps I am being overly fussy?
Will play some more when the seeing is better.
One thing was clear - using the Tak collimating scope helped - but not a lot. I needed to play some more to improve it
Pete
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