The Xicoy device is a great tool once you get all the numbers plugged in and are correct. From there while on the scales it allows you to do your component / battery placements and you see changes in real time while you work. All well and good. like I said, great tool... BUT, after all that being said and done, once I'm happy, I'm going back to the teter-totter balancer to confirm before I fly !!!
Dan