I didn't give the entire story at the beginning because my question seemed simple and I didn't want to complicate it with too many details, but several questions have come up that might be enlightened if I give all of the facts.
I actually have two sets of new skis. One set of skis has Marker bindings, the other Salomon. The Markers were set higher because I asked the shop to do it. I had no release problems. When I had the Salomans mounted I decided to try having them set them at the normal DIN setting and when I got them I backed the Markers off to that setting too.
First, I skied the Markers. I was skiing in a straight line in soft crud when I hit what must have been an ice chunk. My ski flexed a lot, the heel released, and I ended up crashing.
Second, I skied the Salomans the next dy and twice on that same day I transitioned from crud/soft snow to a groomer at speed and at the transition point the snow on the groomer was significantly compressed below the ungroomed. Right at the transition point the ski flexed and I ejected.
Two sets of skis, two different manufacturers, same result. In each case the heel completely released. When I cranked them to one DIN setting higher the release problem stopped.
I should also note that a very similar thing happened about 8 years ago when I had a pair of bindings mounted. I cranked them up a notch and I had no problems after that.
Edited by Posaune - 2/17/16 at 9:07pm