For those that are curious -

I found that for my purposes, a frame by frame scale in the regular gigapixel software generated better results than using their beta video upscaling software.

I have tried a double pass and I cannot recommend it. I have also tried to layer a pass of low/low on top of a pass of none/none - my feelings on this are mixed, depending on your software you could adjust the opacity of the layers until you find your desired/optimized results.

For me, I’m finding my best results scaling with the none/none preset. It does actually do a fair job of preserving detail and removing a layer of blur even on the “none” preset. At most I run a low/low.

I think with certain scenes you could play around with a variety of filters and use masking to pic out the best parts of the best runs. The background of space for example while inside the x-wings will look better with a none/none, but Lukes face will likely look better at low/low. Use the none/none as a matte and mask Luke back into the frame by hand.