Hi Karen, Looks like this will work. I would purchase the shortest version that gives sufficient clearance between the Apogee box and the Movi. When you try the extension, you'll find out, given the way that you use the gimbal, whether the cable causes too much interference or not. If I recall, there's discussion earlier in this thread about whether it is a good idea, generally, to use cables with the Movi. I tried it and I don't like doing it, but I think that I'm in a minority. You may also find it helpful to read the following thread, which is actually about USB-C to Lightning adapters, but which may give you a better sense of what's involved in using cables with the Movi: https://forum.freeflysystems.com/index.php?threads/usb-c-lightning-cable-options.12473/ At the end of the day, the extension cable will either work for you or it won't. Good thing that they are fairly cheap. If it doesn't, you can move to one of the alternate solutions discussed three posts up. If I recall, Freefly's advice is to balance your iPhone with the cable in place instead of balancing the phone and then adding the cable. Having followed this instruction, I think that it's probably a good idea, but the reality, at least in my experience, is that the balance will change with every movement of the cable. In the end, I think that this is a matter of how well the Movi's motors handle (moving) cable-induced imbalance. Re your specific question, and assuming that you are using an iPhone without a case or accessories, I don't see any reason why using this cable would require the counterweight. .