Which one should I use?

[Billy832]

Can I use a digital trim radio with this system? Or do I need mechanical trims like the mfu?

[RCP57]

Digital is fine.

[Supermario]

Originally Posted by Billy832

Can I use a digital trim radio with this system? Or do I need mechanical trims like the mfu?

Type of radio has no effect with this unit. You simply plug in series into your motor esc. The only thing it will require is a spare channel to honk the horn and start/stop the engine. I'm currently using a 6ch radio and use the rotary dial. Turn left and back to centre starts and stops engine. Turn right honks horn until you return to centre. You can also use one of the joystick channels. It all comes down to personal preference and how you like things set.