On Sunday night I shot three targets. Eta Carina, Lagoon and 47 Tuc. For the Lagoon I ended with a stack of 2.9 arcsec FWHM so when I say that 47 Tuc had deteriorated further (I noticed the minimum FWHM go up when I was manually focusing) I think I'm near going to turf that data.
Anyway, having recently been combining some QHY22 Ha with DSLR (both with a 675mm refractor) from dark skies I found it quite an interesting comparison for 2.1 hours of F/10 data from my heavily light polluted back yard. I'm quite liking the 0.4"/pixel scale at the moment (yes, the one night so far I've done it!)
Obligitory Astrobin Link
I attempted to create some synthetic flats from the three data sets and that didn't do so well. There were some pretty major just motes (need to clear the UV/IR filter I think) so I've cropped it to square format and leaving it like that.