r309dps reciever???
A friend of mien just yesterday test fkeww a jamara cap 230 w/ saito 120. Hed spent ages, just liek yourself, getting it perfect.
First flight was fine, second flight he did a stall turn, then it went into an uncontrollable full throttle flat spin.
I will check iwht him what rx it was as i have my suspisions it may be the same! He didnt set the failsafe unfortunately.... did you? I trust theyre pcm aren't they?