Nice galaxy
I find binning 2x2 and 3x3 with my SBIG provides significantly more data for the same exposure time. When I notice it most is positioning a FOV when 5 sec exposures at 3x3 will easily show any NGC object where as 1x1 it's borderline with some fainter mags.
.... also sometimes I bin 2x2 when conditions are poor because I'm not getting nay more data at 1x1 due to my long focal length and the poor conditions. So using 2x2 gives me more data, faster downloads (not an issue for your USB camera), and sharper image to work from.