Perfect timing Ray as I've just got myself my first mono chip
My first experiment has been with luminance subs at 1x1 and then RGB subs at 2x2 binning of the same exposure time as luminance. I think that at the 1x1 resolution of my experiment, 2.4"/pixel, the colour data may not be fine enough and many stars are clipped.
I figure I will try 1x1 for RGB next...but given 1/3 the photon flux, the colour exposures would need to be longer than the luminance, unless I misunderstand.