Riccardo, I had a chance to try the FITS save again...same results as last time.  It just transfers GGGG files that are grey only. I tried a few different configurations (FITS options, Capture module options, Indi Fuji_ccd settings) and always ended up with either a failure or a grey FITS file.  Saving the images took quite a while, on the order of two minutes (conversion from RAW time, I guess)  Way too slow to be useful.  I shoot with the Fuji set to save compressed RAF files (~26MB) to save space as my processing program will successfully handle the compressed files.
I will stick with using RAF files for now.

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