9Z WCII with Futaba TM-8 here. Flawless so far. I used Futaba 6106, 608 and 6008 Rx's, and now FrSky "clones". The only thing I can complain is the need to use a switch to change between 7 and 8 channel modes (6106 Rx is a 7ch mode unit) Not a big problem but my 12Z changes through the software when you select the corresponding model.