Hi guys I have a m12 radio and I'm building a mst rwd drifter which I plan to get the sanwa vortex zero and sanwa sgs-01c for. What I was wondering is both say the settings can be adjusted from the m12 if I use the rx-472 receiver which I'll also get but I wasn't able to find if both can be hooked up and change settings at the same time.

You will only be able to adjust one. Which ever one you choose to have radio adjustability must be plugged into the batt/SSL port on the reciever. Only the one port offers the SSL feature.

Hmm I had a feeling that was the case. I wonder if a Y splitter cable would work.

you can adjust the esc in aux1 and aux2 mode1-3
gyro is adjusted from aux2 on mode 4 & 5
Hope it helps!