Who wants to do some pixel peeping for the 650D?
https://www.dropbox.com/s/8gkifgx2lwwq2rx/650D.104-RAW_TYPES.zip
Download that, replace the files on your 650D SD card. Enter Movie Mode, go to the debug menu and click on "Don't click on this!"
It will start taking 100 frames, might take a while. Make sure you keep your camera on something static so you can pixel peep properly.
Once it has done you should have 0000-0099 DNG's on your SD card. Go through them all (I recommend light room) and find the BEST one out of them all, report your findings REPORT THE FILE NAME of the best one you've found.