As I recall I was rather disappointed in the 'crash' as it seemed to be more like a high speed landing gone bad rather then a near vertical crash I was hoping for.
They wanted a survivable but fairly violent crash so that they could get information from crash dummies etc.
In the end the crash they produced would have killed 25% of the people so they probably got it right.
It seems the undercarriages on the wings are designed to shear off to avoid damaging the wing fuel tanks and they behaved as planned. The undercarriage under the cockpit was not designed to shear off but it did look as if it was then responsible for ripping the cockpit right off the plane. The crew and first class were totaled.
The passengers at the front of the plane got hit by 12g, at the rear it was 6g.
Brace position won over sitting upright, though I thought the upright dummy was a bit unlucky.
One thing that I found interesting was that the brace position did not appear to threaten peoples necks as you might think, but made them more likely to break their legs. Because the braced person is leaning over their legs the legs are not free to move up and so undergo a lot of stress and slide back under the seat.
Great that you can fly a 727 with an RF controller even if only for a few miles.