well
have decided to do some mods. on my plane ...replace the elevator servo with 2 fut.9650 to move more weight backwards.
total weight now before mod is 4996 .......... also change the 2300 Mah bettery to this new Shultze lipo pack this will give me ca 25 gr also ..maybe i can reduce the plane with 50 gr total...a bit more on the right side off 5000 gr.
I also had to change the undercarriage to a Bolly the original (and lighter) didnt survived grass field lasted about 75 flights.