Don't take this as gospel it's just been my experience that when a saito starts and runs backwards it's been bung full of juice and overprimed by me.The 30 has a very long intake tube a bit like the much bigger fa220.
Davey hobbsy may be able to shed some light on the control line use,i thought saito made special c/l engines with a different carby setup.I run a 10x6 series 2 mas prop and got around 10500 plus on the bench.That's going to make you a very dizzy person they go like a cut cat.