I have an image scale of 3.04asp with my old Q (530mm FL) and QHY8 and 2.10asp with my QHY9. In both cases drizzle integration makes a noticeable difference especially with the QHY8 as the bayer matrix just adds to the sampling issue. At 3.8asp I reckon dithering and drizzle integrating will show a significant improvement if your guiding is tight enough.
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