Make sure you adjust them properly. On demos bindings where the toe and heel piece can move independent you need to set them in the right area. Common thinking is you could move yourself forward or backward, with the space given for huge sized boots. However when you move the binding out of center to the size of the boot it can cause release issues. I used to do this with some Salomon foils in our demo shop with no problem, I would move myself forward, basically center of the ski. The other day I did it with a rossi binding on some 90 mojo's and they would release easy when leaning forward. So after testing both of those and some Tyrollia demos I did find they release inconsistent on forward falls. However the binding is not meant to be used like that, so just a warning. Other then that they are probably twice as heavy.
I remember saying something like: I feel a bit lightheaded. Maybe you should drive. Suddenly, there was a terrible roar all around us, and the sky was full with what looked like huge bats, all swooping and screeching and diving around the car, and a voice was screaming: Holy Jesus. What are these goddamn animals?
Dr. Gonzo: Did you say something?
Hm? Never mind. It's your turn to drive.
No point in mentioning these bats, I thought. Poor bastard will see them soon enough.