Hi, Wich is the best drive speed? 6x or 3x? With 3x speed, the drive is more silent and loading times are longer. But I don't know if it's good or not for the lens. I have a Wiikey v1 (1.9s) but I can only use 3x speed with my backups (6x never worked with wiikey, even with 1.9b or 1.9g) What do you think? 3x ou 6x?