The early slick wing DC-9 (-10 series) is more susceptible to leading edge contamination affecting the stall. Roughness approximating fine sandpaper will add ten knots to the stall, so I was told.
For the few who have never seen a DC-10 up close and personal:
http://www.youtube.com/watch#!v=7_ITIlPvcm0&feature=related
EMERGENCY LANDING
It's called "405, the movie," and under 3 minutes.
To me, the DC-10 is a most beautiful airplane. 1979 was just a bad year for it. First there was the AA crash at Chicago (maintenance), then the Western Airlines crash at Mexico City (pilot/controller error), then the AeroMebbe described above, which could easily have ended up at the bottom of the Atlantic, and finally Air New Zealand TE-901 that hit Mt Erebus in Antarctica.
BTW, you can see the end of the horizontal from some of the windows near the back of the cabin of a 10, for a terrific view of its action in the stall.
A video of that would be a hit.
GB