As you know I am not a big fan of the Seestar App mosaic mode aka framing. I tried it in the past and I was never able to capture even a single image. So I stopped even trying. After the latest update I decided to give it another go. The good news is that it works better now. It no longer takes a whole night to create a 2x frame image and the silly spiral walk seems to be gone too. Last night I got a couple of 2x frame images and even stitched them into a single larger mosaic myself in a single night.
I only use EQ mode and I only capture images with the S50 in planning mode because sleep. I planned 2 hours for each frame and I got OK results for both, but the stacking efficiency was just 50%. Here is a screenshot of the plan:

The third image in the plan is a 3-hour normal size (1x frame) of the Pac Man Nebula, which only achieved 30% stacking efficiency. In the end I got three usable images but they could be so much better if the stacking efficiency would be closer to say 70%. What kind of stacking efficiency are you guys achieving?
Here is the 2-frame mosaic and the third image after some post processing:

