Remember also that a very long handle (such as found on the Crusader) gives you all sorts of ways to hold it. Generally, hold at center of razor balance point, which IME on the Crusader is far up the handle away from the bottom, maybe at the top third of the handle. If your grip is very close to the bottom or top, you may find a smooth technique harder to perfect.

I have been holding extremely low. Thanks will try much higher next time