The problem is that a lot of forward pressure makes it difficult to bring the boot back to centre. An analogy might be holding a wet bar of soap, Atomic would be like squeezing the soap end on between the palms of you hands, if someone flicks the bar it goes squirting out. Look/Rossi are like holding it lightly but wrapping your fingers around the sides, you get a much better grip with less pressure. Atomics just ram the boot from behind into the binding toepiece, which only has two contact points with the boot, once the boot is off centre leverage and friction make it very difficult for the binding to bring the boot back to a centred position.
Look/Rossi and Salomon grip the upper boot radius and have and have anti-friction devices on the very front to the toe. Even when the boot is an inch off centre they still can easily bring the boot back into position, if the force which pushed the boot off centre has disappeared. A lot of elasticity makes it easier for the binding to distinguish between short sharp shocks, like hitting an ice ball on a groomed run when you don't want to release, and continuous slow twisting in a fall when you do want to release.
[ October 12, 2002, 02:59 PM: Message edited by: kiwiski ]