Mine is set at 4" also Luke using my C.G meter. Do you remember talking about the bolt on the underneath side of my Plane, back by the tail? Thats my dead weight. I dont mine having it there because I use it to help secure my Plane in the back of my Truck in a Magnetic Mount. I havn't weighed my Plane, but it seems to me that yours came out a tad on the heavy side. Maybe you should consider putting your Pilot on a diet. I am getting ready to install a 1/5 scale pilot in mine, and I have told him that he is not to be sneeking Brownies and Potato Chips into the Cockpit with him.