Saturday and Sunday made the first flights. The CG is where I thought not 95-105 mm, the exact place is between 120-130mm. from close to the fuselage. 125mm. seems OK. I replace the prop. APC 12X4 is perfect for 50 SX. And I used Macs Muffler the black one (#6590). Take offs where very fast and short. Little clicks to down trim. Level flights where perfect. Loops seems good. Invereted flights needed little down stick. Landings where quet good. It stays where you left no suprises. It can fly very fast and very slow.After a couple of flights, I realize that it needed to much right trust. I put more washers to the mount. I couldn't try to hover, because of the wind. It seems you need to take CG more backwards for hover. I made some mixes for knife edge (rudder,aileron,elevator). After right mixes. It was pretty cool to fly knife edge only with the rudder in put, after one moment of aileron.If you will take off from grass you need to replace the included wheels with larger ones. Everything seems OK, except the covering. After some flights, it starts to get out. You need CA. with you after every flight. It's a patern and 3D airplane. Perfect for weekend flying.