this is my 70% gain saturn from a few nights ago with 1671 stacked, with no hand picking.
So yes, if you are going to go less frames, then less gain.
Bird and mike and co have been discussing higher gain and lotsa images ie 2000.
So find a good system to estimate seeing (ie can you see the cassinni division thru the eyepiece and is it stable) and if it is good, then high gain (70%) and lotsa images stacked otherwise, less and less
It seems that this little planet is very hard to get spot on!!
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