I bought my 350QX yesterday as a bind and fly. Read up on the 9303 setup, and it works with the 9503 DSMX as well.
Flown three battery cycles so far, and even as an aircraft pilot, I am getting the hang of it. Kudos for the prop strike protection, dumb thumbed it into a shrub, and it shut off as advertised. Checked the props, adjusted one for tracking, and back into the air it went. Can't wait to get my Go Pro on it and shoot some video!
Here is a link to the 9303 setup I used:
I skipped assigning a switch for the throttle cut, and instead adjusted the throttle travel to allow the motors to arm at full up trim, and cut off at full down trim, just like my glow and gas planes. I also set my rudder travel to 115% as I read elsewhere this makes the left/right rudder movement to arm the motors work better.
Still figuring out the return to home function, but the safe circle is cool, especially for beginners. This thing will be a big hit.