In reply to thechop:
I've just gone from Dragons to Blackwings and they have a different fit, the Blackwings feel as if they have more in common with the last generation Dragons than the current ones, the heel for example fit completely different for both.
As for the extra stiffness I found the Blackwings to actually be stiffer, especially later on, it's just that the Dragons seem the retain their edge better for some reason.
They basically felt pretty different, but then its been a while since I had different shoes which may be distorting my view a bit...