That's a good start there John. With your rig you'll be able to produce some really great planetary images.
Just remember that if the seeing is no good then it doesn't matter what equipment you've got, it'll be nigh on impossible to produce a good result.
Remember that focus is (as ever) absolutely critical and it's far from easy to get sharp focus. Spend plenty of time getting this absolutely nailed (much easier in good seeing).
Stacking 90% of frames seems a lot. Most imagers stack somewhere between 10-50% of the best frames but each capture is different so experiment with different amounts.
The current consensus is that best processing method is to stack in Austostakkert 3 (as it has a more advanced stacking algorithm) and then move on to Registax for wavelet sharpening. It means learning another program (it's free however) and there are online tutorials which help you learn how to navigate these programs.
As Mick said you generally only need the first few wavelet sliders in Registax. You can actually put the percentage limit of the first one up well past 100%
and don't forget to increase the noise reduction on the left as you increase the slider.
Looking forward to seeing more images.
