Gazwas just a note...If you can find used Bron ext cables they can be rewired so that they work with MobiLED ( so that the modeling light works )..saves a few hundred bucks! I traded a Profoto ext cable with a repair shop for a used Bron cable that he modified for the MobiLED. With the length or lack of cable legth on the MobiLED's, ext. cables are a must when using 2 lights per pack. Also if you have some images from the 133 send 'em over, would love to see them! I agree on the B1, Its a nice light but honestly when shooting a scene with my Move, I'm usually pretty dam close if not spot on with light levels first frame. The B1 takes the trial & error out of the equation , MOST OF THE TIME, but as we all know TTL is an average of the sensor, depending on settings and can be easily fooled depending on the background. On another note, IMHO the B1 can be a disadvantage to the photographer when it comes to learning light as it removes a good amount of theory and practice from strobe lighting. Don't get me wrong, its a great product and I can see a photographer grabbing it out of the bag for a shoot where they literally have minutes to capture the shot, but for now give me the Move and some great modifiers and I'm off to the races..Ciao...