most people have to take the motherboard out to put thse bigger CPU coolers in anyway, especially with the space some people get when the CPU slot is close to the top left of the motherboard with a power supply and the back of the case being right there..
i can imagine it'd get fiddly.
and a backplate can only add to the stability really can't it?
nice 1!
it's a very good cooler for a very nice price
what's your case airflow like btw?