there is another thread here with this same topic
I love my disorder, its always in my bag, however the disorder seems earlier to me than the SD
the SD seems to get through the heads better, even at OBB surface
it seems a little longer ans stronger to my eyes
I've been told recently that the numbers don't tell the whole story anymore, its a good indication of what you can expect, but that there is so much more involved with cover and core technolgy.
Maybe someone else here can explain it, but the info came from a reliable source