Put together a rocksim file for the Skonkwulf. CP using Barrowman was 15.0 inches. Using the rocksim method it was 15.7. I built using thickwalled bodytube and corresponding nose cone with a resultant measured weight and CG of 360 gm and 10.75 inches. Have only flown once on an E28, but flew great. Have yet to attempt the paint scheme so it is just a plain primer white.