I was so excited when I saw that FreeFly has come up with it's own TB50 battery adapter for the Movi Pro. I was less than excited when I realized that the batteries slide in from the front (the Ignite Digi Adapters have them slide in from the rear) so when you have to remove the landing gear to switch batteries. Trying to decide if I take a grinder to them to put a notch in the rail that will let the batteries slide of. I mean the FF version is less than half the Ignite but......