I'm a little curious on what size /pitch prop and how many cells you are running? My set up flew too slow with the Fiorotti Timer. (details in the Electric section) The issue seems to do with the PWM from 1.7ms and up in the Castles firmware.
well i am a novice on electrics and to be honest, i really donīt bother on details ( i love modelbuilding, never cared for glow mechanis or electronics, my fault) , i use what Fiorotti recommended and he have run thorugh the set-up with me
we are ate least 4 here flying with his timer on the same airfield and all have been pleased
propeller is wood 12 x 5 Xoar and battery 5S 2700 zyppi compact, so far so good
what problems are you experiencing?
friend of mine had several plagues and then he realized that he was using cheap batteries and engines plus hearing all kind of input from everyone but Fiorotti advices, when he updated to the right stuff and followed the mannual, the plane performed as expected
i am too dumb to learn about the tricks of electronics (still listen music from vinyl!)
hope you can sort this thing out, maybe with Fiorottiīs help, heīs a nice guy and have tons of knowleadge from his long time former job in the electronics industry. bottom line for me: if he moves from here, i will have to convert my gear to glow again LOL