Frank not a bad starter image but I think you might be just a little too oversampled. Using a reducer will certainly make a difference to your sampling rate. You could use this rate for doing planetary nebula though, especially on the smaller ones.
As for focus I use the bahtinov mask too. I do view it at 200% though. This gives me a very accurate focus. You might find you can use the bahtinov grabber software too. I cannot get it to work with my camera or capture software, but it might work for you.
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