Thanks guys.
Paul - I often do use the Adaptive Add in IP for stacking, because as you said my exposures aren't long enough so that averaging usually ends up with the result too dim. Obviously the result of the add is a bit noisier than the avg because it's going to be adding the noise as well.
Auto-guiding is my next step (my GPUSB kit arrived yesterday), but I just need to figure out how to mount my 2 refractors together securely and still be able to balance them properly.
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