chemie,
The Futaba 7C - 2.4 ghz absolutely has a dual servo set-up. I believe they call it ailevators. Using Pmix does not work because the trim is not picked up in the mix.
Props and engines...everybody has different ideas

for sure. On my ST90's, once broke in I use a 15X6. Lots of pulling power. A few less RPM (better sound) maybe a little less speed, but did I mention a lot of thrust.

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