In reply to mike123:
Never skied on Vipec bindings. Did 60 days last season on Dynafit (Beast 14 not Radical).
In the Trient hut last March we dined with a guided group on the Haut Route who were having to lose a day of their trip due to one of them having broken a brand new Vipec which they cobbled together to get down to the valley. This was one of the latest black versions. It may have just been bad luck, but ....
2 of my chums skied all last year on Radical 2 bindings. Faultless through some significant use. Like the beast there is some elasticity in the heel of the 2 (Vipec has elasticity in the toe!).
I don't know if he has any left, but Jon Coster at the Piste Office near Nottingham had a batch of the latest Beast 14 bindings at about £240. An absolute steal. 300g heavier than the Vipec, but bombproof in operation and feel like an Alpine binding.