I finished my Neptuno GP this past weekend and flew it yesterday for the 1st time. What a great flying plane!! It was rock solid and flew like it was on rails... I flew 3 simple flights and next time I'll start the trimming process. It won't need much though - I put in 2 % down mix with low throttle for the down lines and the up lines were pretty solid and straight. Right KE was perfect and left needs some slight up with left aileron. I still need to install the CDI so that will add some nose weight... overall weight now is 4.92kg with the CDI and 2 batteries/switches.