I'm a bit too far away in Armidale but I'm sure there will be someone closer.
How are you guideing?
With an off axis guider or a second scope.
I have found the most common problem with trailing if you can keep a guide star centered is flexure between 2 scopes. This won't occur with an off axis guider but the choice of guide stars is much less.
I use 2 scopes but have tried to minimise the flexure. Even so I still will get a little trailing after 10 mins depending on where I point in the sky.
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