Sabre Messages 1,078 Location UK Friday March 3, 2017 #31 Lucido said: Now that's a collection @Sabre ! Have you noticed much difference in how the various twin blade carts shave? Click to expand... The older carts are quite smooth after a first use, some are a bit rough the first time. The NOS are very sharp when you imagine that most cheap twin blades disposables should be the same item but with a handle.