Its a problem with Futaba Tx's (at least on the 8U and 9C) when used with a synth module.
As far as I know, the synthesizer from Futaba will be the
first legal and
supported synthesized module FOR the 9C so how can anyone possibly even make such a claim? You guys playing on the edge of the fire just to see if you get burned or not don't count as far as I'm concerned.